GROUPON SHAM

I purchased a Groupon voucher for a meal at Fegos at the Glen Shopping centre in December,made a reservation as required but when I turned up to claim it found that the restaurant was closed down and apparently had been so for a while.I tried phoning the Groupon customer care line but never got through to anyone,i'v sent numerous emails and get no response.I see on the daily Groupon emails this special for Fegos is still on offer =,don't know how many other people are are being caught like me.Wont be buying anymore until this matter is sorted would hate to be ****** of a much bigger purchase.would love to hear from someone at groupon.