att changes executive order of charges Internet

Im dissapointed with att uverse, I have spoke with a executive office person, and told me that for a year i was going to paid a flat rate on my uverse services, since 02/2016 its not a year and uverse is being charging too much for the same services, they dont read notes, or dont care about customer concerns, im about to cancelled my services, please i need someone from the executive office to contact me , and help me resolved this matter, they att going to cancelled my services cause this is an error, too much $$, i told customer services to check on notes back on 02/2016 they dont care,