Game PMB terrible customer service

I recently received my TV back after it being with Game for a month. I had to constantly call & go into store to get updates. The repair warrantee states if the item is with them for more than 21 days I can get the item replaced. Game refused to do this. 2 weeks after receiving the TV it stopped working again. I have made numerous telephone calls to the store manager as well as sent emails & I have had absolutely no feedback.