Sludge-speed internet and horrible cell reception

Interrupted service. Stopped downloads. Dropped calls. Endless buffering on internet service. Every EXCUSE AT&T gave me was just a lack of accountability. “too many devices. You need to upgrade. Try rebooting. I don’t know.” 

Are you kidding me?! I pay over 200 a month for the 2 phones alone! I have a business internet account! I’m single and have no other devices competing for my modem! Enough with the excuses! I want OUT OF MY CONTRACT!! I see this is a pattern with AT&T!! Absolutely UNACCEPTABLE