AT&T U-verse Never received promised rewards card for $200 West Palm Beach Florida (FL)

My service with AT&T U-verse began on July 11, 2016. AT&T promised me a $200 rewards card within a month of starting their service as a rebate for entering a 1-yr contract with them. After a month, I called AT&T U-verse at their phone number: 800-288-2020, and they first gave me the run-around....transferring me to the Philippines and then back to the USA...with nobody giving me a clear answer. Finally, after many calls and complaints, AT&T told me that my rewards card had been sent to me at the end of August. So, I waited a few more weeks and it still never came. AT&T management are dishonest liars and I want to complain about the way they do business. Because they promised to send me a $200 rewards card and never did, I want AT&T to either send it to me, or let me out of my contract immediately and compensate me for the $200 they never paid me.