ORDER CANCELLATION - NO REFUND

On 01 September 2015, I purchased Cookware from Groupon via their daily on line promotions. Less than days after receiving the product, I executed my right to return the product without question, the process began and the couriers collected the purchase as agreed. That was on the 14 September 2015. A week or two went by, at which point i began to make enquiries as to when I could expect my refund. After many many e-mails i decided to phone. This on its own was a nightmare of being something similar to phoning someone at a government institution, I am guessing 20 minutes......at this pint I am told the refund was processed and should reflect withing 3 days..not sure why the delay as when you order the take your money immediately... Anyway as time progressed no refund... I gain made enquiries via electronic mail... and still nothing.... recently my mail go unanswered save for an automated reply saying they are experiencing high volumes and with get back to me in 5 days....WONDERFUL.. So I am either owed, a cookware set, a refund or proof of a refund...