I implemented the subscription tools module version 1.03.04 to my website and I was the first to use it pay the yearly dues.  The subscription period is set to 1 year.  After I paid using my paypal account I clicked the return to merchant link.  It didn't respond so I ended up clicking it several times before it worked.  I ended up getting 4 receipt e-mails with different receipt numbers.  In the subscription status module it showed the four different invoices even though they all had the same paypal transaction number. 

The expiration date was also not correct because for each receipt it gave them another years worth of access.  Do you think me clicking the return to merchant button mulitple times caused all of these issues?  To resolve the issue I had to change the expiration date in the UserRoles table and delete the additional entries in the DNNFORGE_SUBSCRIPTIONTOOLS_Receipt table.

I just upgraded to the newest version of subscription tools, but I'll have to wait for the next person to pay their dues before I see if it works correctly.