Sears review: breach of contract & horrible service

I bought a walk behind weed eater & the belt broke in less than 1/2 hour. When I returned it the guy got angry & beligerant right from the start & accused my wife & I of abusing the thing. when he did finally refund the money he charged a $57.00 restocking fee to our credit card. Now the clerk that sold us the machine assured us if we had any complaints with it return it within 30 days for a FULL refund. The other guy (I believe he's the owner) showed us the fine print on the back of the receipt that says he can charge 15% on special order items. This item was not special order. Anyway we don't see that receipt until after the transaction is through. so whatever terms are written on the back of that receipt are irrelevent. What is relevent is the agreement we had with the sales clerk at the time of the sale. He said 100% satisfaction gaurenteed or a full refund. & that is what I expected. What I got was hostility & $57.00 stolen from me.