Mobile payments

1. A method to process a payment transaction at a computing device, the method comprising:

associating a first mobile phone number of a purchaser with a second, different mobile phone number of a payer;

receiving a payment request at the computing device directly via a network from the purchaser authorized to make a payment using a bank account or credit card issued to the payer by an issuer, the payment request comprising the first mobile phone number of the purchaser;

determining whether the second, different mobile phone number of the payer associated with the first mobile phone number of the purchaser exists in a database at the computing device, the second, different mobile phone number further associated with payment information comprising information enabling access to the bank account or credit card issued to the payer by the issuer;

after determining the second, different mobile phone number associated with the first mobile phone number exists in the database at the computing device, generating a message comprising notification of the payment request and a request for authorization for the payment using the bank account or credit card issued to the payer;

transmitting the message to a mobile phone of the payer using the second, different mobile phone number of the payer; and

processing at the computing device the payment transaction using the payment information after receiving authorization for the payment request from the second, different mobile phone number of the payer.

2. The method of claim 1 , wherein processing the payment transaction further comprises denying the payment request if it is determined that the second, different mobile phone number of the payer does not exist at the computing device.

3. The method of claim 1 , further comprising authorizing the payment request using the second, different mobile phone number prior to processing the payment transaction if it is determined that the second, different mobile phone number exists at the computing device.

4. The method of claim 1 , wherein transmitting the message to the mobile phone of the payer further comprises identifying information for the purchaser and an amount of money requested in the payment request.

5. The method of claim 1 , wherein processing the payment transaction further comprises:

determining whether the payment request satisfies at least one payment condition related to an amount of money per payment request or time period; and

executing the payment transaction using the payment information when the payment request satisfies the at least one payment condition.

6. The method of claim 5 , wherein processing the payment transaction further comprises denying the payment request when the payment request does not satisfy the at least one payment condition.

7. The method of claim 5 , wherein the at least one payment condition comprises at least one of a single payable amount, monthly payable amount, and payment time period.

8. The method of claim 1 , wherein the payment request is wirelessly received at the computing device from a mobile phone of the purchaser.

9. The method of claim 1 , wherein the purchaser comprises a minor and the payer comprises a parent of the minor.

10. The method of claim 1 , wherein receiving the payment request at the computing device directly via the network from the purchaser authorized to make the payment using the bank account or credit card issued to the payer by the issuer comprises receiving the payment request at the computing device operated by a credit card company that issues the credit card to the payer.

11. The method of claim 1 , wherein determining whether payment information associated with the purchaser's mobile phone number exists at the computing device comprises identifying a credit card number corresponding to the first mobile phone number, wherein the payment request is received from the purchaser's mobile phone associated with the first mobile phone number.

12. A system, comprising:

a receiver configured to receive a payment request directly via a network from a purchaser authorized to make a payment using a bank account or credit card issued to a payer by an issuer, the payment request comprising a first mobile phone number for the purchaser;

a database configured to receive and store payment information associated with the first mobile phone number for the purchaser, the payment information comprising a second, different mobile phone number for the payer and information for accessing the bank account or the credit card issued to the payer by the issuer; and

a processor configured to:

generate, after determining the second, different mobile phone number associated with the first mobile phone number exists in the database, a message comprising notification of the payment request and a request for authorization for the payment using the bank account or credit card issued to the payer;

transmit the request for authorization to a mobile phone associated with the payer using the second, different mobile phone number; and

process a payment transaction in response to the payment request after receiving authorization for the payment from the mobile phone of the payer.

13. The system of claim 12 , wherein the processor is further configured to deny the payment request if it is determined that the second, different mobile phone number associated with the first phone number does not exist at the database.

14. The system of claim 12 , wherein the payment information comprises a credit card number for the credit card issued to the payer by the issuer.

15. The system of claim 12 , wherein the purchaser comprises a minor and the payer comprises a parent of the minor.

16. The system of claim 12 , wherein the processor is further configured to determine whether the payment request satisfies at least one payment condition related to an amount of money per payment request or time period and to execute the payment transaction using the payment information when the payment request satisfies the payment condition.

17. The system of claim 16 , wherein the processor is configured to deny the payment request when the payment request does not satisfy the at least one payment condition.

18. The system of claim 16 , wherein the at least one payment condition comprises at least one of a single payable amount, monthly payable amount, and payment time period.

19. The system of claim 12 , wherein the first mobile phone number of the purchaser is stored with the second, different mobile phone number of the payer on the database.

20. A method, comprising:

associating a first mobile phone number of a purchaser with a second mobile phone number of a payer through linkage of the first mobile phone number and the second mobile phone number in a same record or tuple of a table in a database at a computing device or through linkage of the first mobile phone number and the second mobile phone number, located in separate tables in the database, using a same reference key, the first mobile phone number being different than the second mobile phone number;

receiving a payment request at the computing device directly via a network from the purchaser authorized to make a payment using a bank account or credit card issued to the payer by an issuer, the payment request comprising the first mobile phone number of the purchaser;

determining whether the second mobile phone number of the payer associated with the first mobile phone number of the purchaser exists in the database at the computing device, the second mobile phone number further associated with payment information comprising information enabling access to the bank account or credit card issued to the payer by the issuer;

when it is determined that the second mobile phone number associated with the first mobile phone number does not exist in the database at the computing device, the method includes denying the payment request;

when it is determined that the second mobile phone number associated with the first mobile phone number exists in the database at the computing device, the method includes:

generating a message comprising notification of the payment request and a request for authorization for the payment using the bank account or credit card issued to the payer;

transmitting the message to a mobile phone of the payer using the second mobile phone number of the payer; and

processing, at the computing device, the payment request using the payment information after receiving authorization for the payment request from the second mobile phone number of the payer.