Definition of zero customer service

I purchase a Groupon and the supplying merchant then informs me that they don't have availability until after the Groupon expires but I can go on a waiting list etc etc. So I immediately email the address on the Groupon to cancel (the terms and conditions say I can cancel within 7 days). When I still receive no response within 3 days - I call the customer service line, however, their customer service desk is unable to assist with cancellations - they need to contact the sales department who will then call me. I specifically ask: \will it be today still?"The customer service agent confirms that it will be the same day. No feedback. No call. I receive a automated Groupon notification asking whether I had been assisted - I respond \""no\"". Nothing. I receive the automated notification again. I respond \""no\"" still nothing. It has been 10 days now and this issue still hasn't been resolved. This is in fact the definition of non-existent customer service."""