I purchased a refrigerator from Sears. The Sears sales representative made me aware of a two year no interest payment option by applying for and using a Sears credit card. I opened the credit card and made the purchase which included the refrigerator as well as a {$490.00} protection plan, which they assured me could be returned for a full refund. I decided to return the protection plan, which was fairly straightforward. The return was reflected on my account and I was pleased. Some time after this I noticed a charge of {$490.00} and then a refund of {$490.00} on the same day. Since the net effect was zero, I did not think too much of it. On my next statement I see that I am being charged interest on a non promotional balance of {$490.00}. From what I can tell they charged {$490.00} to a " non promotional balance '' and then refunded it from the promotional balance, which was the account that does not charge interest. 
