Groupon drags feet on refunds

I bought a Tablet from Groupon in August. I entered a wrong reference code in the transaction, but then corrected the reference in a subsequent transaction which I did a few minutes later. I then contacted Groupon to say that they must ignore the wrongly referenced transaction and do a reversal of the funds into my account. They agreed. Since August, I have been dealing with this matter and my money has not been refunded into my account. I am being given a SILENT treatment, after I provided what they claimed was missing - my account number. Very surprising as they received the money for the correctly referenced transaction processed on the same account number. Now it is OCTOBER , from AUGUST, Groupon has been withholding my money and simply IGNORING a customer. Shame on you for such poor service to a trusting customer. I just hope I can warn other people to stay clear of GROUPON. They may just be done in like I have. What a disgrace the service of GROUPON has been, especially for busy people who think they can actually do an electronic purchase and save themselves time. well...maybe consider carefully whether you want to deal with GROUPON!!! It may not be worth it at all.