Keep billing my credit card after cancelling

I cancellled the subscription, Jan 18 2014, The GRC rep, stated she would refund my credit card after I returned the product. Never received the product, never received the refund. Feb 18 2014. another charge on my credit card from GRC. I talked to a supervisor? who stated that she saw where I cancelled in Jan, so just return the product and I'll refund Your credit card.
This is a ripoff