Complaint Review: GPM Merchandise Direct

I ordered 1 cushion they call comfy cushion and thought I was ordering only 1 plus the free one. They kept me on the phone line for a long time, telling me  about several other items they had for sale and I kept saying no, no.  Finally I just hung up because I had ordered the cushion and didnt want to hear about anything else they had for sale. I never was told was my total would be and when I checked my bank account I almost  fell over. The total order should have been $19.99 plus tax and shipping bur they took $112.00 . for what I don't know. Please help me.