Billing dispute with Master Architecture Associates Holdings

I'm writing to complain about the warranty service I received from Master Architecture Associates Holdings. After paying $822.94 for system, I found that it had repeated billing errors. I've tried resolving this with your customer service team multiple times, including speaking with Jimmie U., but have not received a satisfactory resolution.

I'm writing to complain about the warranty service I received from Master Architecture Associates Holdings. After paying $822.94 for system, I found that it had repeated billing errors. I've tried resolving this with your customer service team multiple times, including speaking with Jimmie U., but have not received a satisfactory resolution.