Over-Charging and Inconvenience

I have been dealing with AT&T for about 2 years now. I moved to a new house within the same city and was told by an ATT rep that I was not able to move my internet to the new house and that I had to get a entirely new account, leaving my mobile on an account by itself. They ended up charging me for installation but would waive it if I got Direct TV something I really didn't want but got so I wouldn't have to pay for a service I already had. Fast forward to 3 month later, I called about combined billing, they told me it was in the process. Mind you I had already asked when I moved about combining them. Fast-forward to another three months I a  still paying separate bills for something that was suppose to be combined back in February of 2017. Customer service has been no help. I recently called because they were suppose to be issuing me a reward card for a mistake they have yet to resolve. I ordered a service due to them telling me that if would be cheaper, but seems that it is not,  I have been paying more due to my bills not being combined. I called to check the status of my reward and found out that I no longer qualify for the reward because they issued the wrong type of reward. After discovering that thye messed up again, I am still without "waiting to hear back from their reward center about my inconvenience reward." Every time I call they tell me something different with the process having to take an additional 3 month and really costing me money. I am to the point where I want to go to a new provider. I shouldn't have to constantly call about this matter, it has been a year now.