How do you cancel a telephone order for snuggies sleeve blanket ?

I phone ordered 1 + 1 free snuggie fleece throw that has sleeves 12 /15 /2008, after getting my credit number (all automated) was asked to buy many memberships. plus delivery could vary up to 6 weeks. Had to call customer service to get total charge, was told they could not stop as did not have order yet. I do not want the mdse., so how do I stop this transaction ??