Worst service EVER and poor standard products!!

My brother and I both bought HD action sports camera from Groupon which was through the seller \magic in the box". We received our camera's but within the first week BOTH camera's gave the same glitch. I emailed \""magic in the box\"" and supp**** them with images of the glitch and the waybills for the courrier as well as our transaction proof but there response was slow. So my brother called them as he paid with his card and then I called them too and it seemed like things were moving along. They agreed to exchange the items and we were happy to have a replacement. <br> <br> We waited for a 3days and then had to contact them to follow up. They took took another 4 days to pick up the defective goods. We waited another 4days or a week and there was no contact and so I had to force time in my schedule to follow up yet again. We then received the new replacements and low and behold they both gave the exact same glitch on the same day. <br> <br> I emailed them again to ask for a refund this time and they agreed. We are waiting nearly 3weeks later and nothing. Nobody responds but we see emails with us copied in saying \""Please issue refund for the customer\"" but nobody talks to us nor apologized even once!"""