I am posting this here because others may have a similar issue.  When it was time for renewal, I received an offer card from Stereophile.  I marked that I wanted to renew and sent it off.  About a week later, I received an e-mail asking me to pay for my subscription through Paypal.  I did so and received a receipt.  Today, about a week later, I received an invoice in the mail requesting payment.  So, what to do.  Can anyone help me out?

Thanks in advance.

Tom Collins