Damage done to my AV system due to faulty Direct TV equipment

In May 2015 we tried to order a movie through our remote via Direct TV. We came to realize our wireless connector was not installed. I called Direct TV technical support for instructions on how to install the device. When I powered the device it got extremely hot and I notified the person at technical support that the box was extremely hot. She informed me they run a little hot and not to be alarmed. I installed the device to her specifications. The unit did not work I disconnected it and Direct TV sent me the movie we requested at no charge. Later that evening when retiring to bed I turned on the bedroom television and found that I only had video with no sound. I called Direct TV and informed them of the issue they said they would send a technician on the following Tuesday which they did. He didn't have any knowledge of my AV system and forget to bring the faulty part that needed replaced. I was instructed to call the installation company to diagnose the issue. Upon review the installation company told me the amplifier was blown up and caused by the faulty Direct TV part. They in turn gave me an estimate for repair. I called Direct TV, was directed to damage claims had to fill out a form and wait several week for a response. The finally sent an investigator who reviewed the damage and said he believed the damage was caused by the unit and I would receive a check in 7 to 10 days either by mail or he would deliver it personally Direct TV policy. Several weeks later I receive a letter stating my claim was denied. I called Direct TV again speaking with Andrea Johnson of Damage claims and Dick Davis out of the Pittsburgh, PA office, they sent the same investigator to look at the system again and take photos of the unit. Once again he agreed the damage was caused by the unit and should be paid soon. The claim was again denied. I have called back to Andrea Johnson who then told me " sue Direct TV its the only way to get your claim paid!". I have tried to reach back out to Dick Davis who will not return a call. Andrea Johnson no longer works for Direct TV and when you call the main customer information number which I have at least another 6 times trying to resolve the issues they now tell me to send a letter to the presidents office or send an email. I have sent 3 emails with no response. Today I'm filing complaints with the Attorney General, BBB and I am going to send a letter to the presidents office. It amazes me that the customer service department has no way of communicating with the presidents office for complaints such as these.