I upgraded to the 3-month subscription plan, and paid via PayPal. I have the email receipt from PayPal. After completing the transaction, I was not directed back to the BidSlammer site. When I log back into BidSlammer, none of the "upgraded" features are available to me.

Hello Terry,
Thank you for your question about the upgrade. We investigated as soon as you wrote, and made the correction needed.
Please let us know if you have any other questions, or require other assistance. We are happy to help.