Hello everybody I want to do smth like this, when they will pay me through paypal, I will automatically upgrade their account to a higher level. For example he has a standart account, and he want's to get a premium account. He clicks the Upgrade button, and pay's the fees. In general, this is what I want to do for my website. But how can I do it?
I think you need to post this thread in website development section. there you can get better answer for your desire.