Received a Bill!

I have been a costumer of Better Homes and Gardens for 35 years. I enjoyed this magazine because it never went up in price in all the years like so many other magazines have! Recently Better Homes and Gardens have started sending Meredith books. I paid for 3 of Meredith books during the holidays. The fourth one I sent a notice No to send anymore. I received a bill for one of the books that I already paid for and the price had increased from $15.00 to $16.75? I have all check numbers and dates of when these books were paid! If everyone paid for a magazine every time a Bill came these magazine companies would be Rich!! These magazine companies are becoming ridiculous! Not pleased!