I see the Sticky purchased for $5 on Dec 3rd, however it was an underpayment, so it failed. You should have received an email on how to claim the refund.
Normally there's an option for me to resend the "refund email" in case you didn't get it. However due to the low value of the payment and high value of bitcoin fees right now, this option is not available to me. I says to wait until the fees go down, then the option will be available again.
I don't see the credit payment at all. When was this sent, within 24 hrs?