Hi,
In Iraq the credit cards (Master, Visa, etc...) are not widley used therefor I want to sell courses using Moodle by a key which expires after a certain number of course downloads, as the following
1- I create a key (this key represent for example 10$) and sell the key by hand to my customer by for example 10$.
2-My customer login and then he enters his key when he wants to download a course, then the course's money is charged form the key
3- after downloading a number of courses the key is expired according to the amount of money charged
Can anyone help me to do this system?