Paypal double charge customers

[world100]

I am using paypal with two sites for payment on each site; one for sales on my main site and one for my membership on my wordpress. I am not sure what I am doing wrong but paypal is double charging the customers from my main site that is not using your plugin. Can you please explain what I need to do to set up two different sites through paypal? I have contacted them but they are very brief and uncaring.

[Jason Caldwell]

Hi there. Thanks for writing in.

Can you please tell us what software you're using on the Main Site?
You mentioned that is was NOT s2Member?

I take it you're using s2Member Pro?
~ or the free version of s2Member?

Anyway, just elaborate for me, and I'll see what I can do to help.