No Response!!

I have been a loyal customer of Groupon services for over 5 years now. I have, in the past received professional and efficient customer service. Sadly Groupon's standards for customer care appear to have rapidly declined. I have tried repeatedly over the last month to contact customer care with no success. I hold on forever and there is no answer. I wrote the following email 2 weeks ago and have still not received a ressponse:<br> \Dear Sir/madam