poor quality service

I purchased a deal on Groupon on the 26.06.2015. According to them I had inserted an incorrect reference number when processing my EFT. However, I had sent them my proof of payment and they acknowledged the receipt of payment and assured me that the funds would be processed for a credit. It is now almost two weeks since the payment was made and all I have received from them are back and forth emails of empty promises.<br> <br> this is not the first time i have had such poor service from GROUPON and I honestly believe that they need to retrain staff or change their systems in one way or another.