No proper response received regarding refund

My complaint from early is copied below, with the reply from Groupon saying that i should refer to the email I received regarding my query. WELL GUESS WHAT? HOURS LATER AND STILL NO EMAIL OR RESPONSE ADVISING ON MY REFUND I REQUESTED OVER A WEEK AGO.<br> <br> \I purchased a Groupon Voucher but have decided to cancel and requested a refund. I requested the refund on the same day via email and have not received a response (28th April 2015).I have sent several more emails requesting a response have gone unanswered (5+ emails have already been sent)