[onlycafe]

if you would like to really get their attention ,you might go to the local store, procure a stack of their credit card offer forms that have a first class postage paid mark on them and firmly affix them to whatever heavy items you have in the garage, for example, old beat brake rotors or a short length of I- beam, anything that weighs a good deal, at first class postage rates it will cost them a pretty penny.
i did this with columbia house record club years ago to get them to stop sending me their selection of the month. it worked.