start with contacting the better business bureau in the area of the shop= next step---go to your bank- there is a form you can fill out---and get your money back! last time i had to do that it cost me $10---well worth it if you are out quite a bit more= there are very strict rules(laws) about this type of thing- your bank can track down-and get your money back-you just need to fill out the proper forms and get the ball in motion---the sooner the better.