I bought a groupon@ $25.00 for $75.00 worth of product. I let it expire but decided to purchase $25 worth of of the product. When I keyed in the groupon code number, the vendor did not recognize it, thus I could not go thru with the purchase. I e-mailed groupon about the situation and they said they could do nothing. I e-mailed them again and said they would make an "exception" and give me a groupon credit of $12.50. Still dissatisfied, I e-mailed them again... nothing... Not a happy groupon user.