Verizon QOS??

Does there exist a Verizon QOS group for chronic network issues? I was told there used to be a chronic issues group that would review long term problems and facilitate long term solutions. I am seeing new lows in quality of service from Verizon for one of our customers, and the few people I have been able to talk to claim ignorance/inability to permanently resolve the problem. Any help or suggestions is appreciated. I'd prefer not to go into this particular network issue on the list in the interest of our customer. Gerald