Meredith is billing me for a gift subscription of Diabetic Living. This was ordered through Better Homes and Gardens and was paid by Mastercharge card on January 26, 2011 and charged to my MC account on January 27, 2011. I have a copy of the acknowledgment of payment from BHG stating that payment was received and my account will be marked "paid in full." How do I get this billing agency off my back.