Does anyone know how to get the return URL to "post" instead of "get"? In my account settings the auto return URL is turned on. On the form for the payment I have the return URL set again as an input as well as the rm set to 2. The frustrating thing is that the return URL is still using the get method to return instead of post. This has been very frustating and there isn't much documentation explaining how this stuff is supposed to work.
