Lack of Service, Advertising Issues, Vendor Issues

It seems lately that all I do is complain to Groupon, I've had issues redeeming my vouchers in the not so distant past but most recently I've attempted to return a product because it looked nothing like the picture advertised. When I eventually got a response I was advised to click on a link provided to arrange the return but when I did so it wouldn't allow it as I had surpassed the 7 days returns period - groupon took 10 days to reply in the first place!! Another issue I had was that I couldn't get hold of a vendor, emailed & phoned four or five times each over a 10 day period but with no luck, however, they have since responded. As a whole I've just had bad service from both Groupon & their vendors regarding service, feedback & everything in between. I again emailed them regarding all my complaints on the 20th of October, I received the automated email to say they would get back to me within 2 working days, 8 days later I'm still waiting for a response