Time Warner Cable Never received $150 Best Buy Gift Card for new service after multiple conversations with several TWC associates Charlotte North Carolina

I was instructed to be a "new customer", I had to terminate the current service that was to my house (was in roomates name) and add service (which was my first time ever).  I then inquired about it as they had several caveats to recieving the gift card.  I had to enter a code within a specified time but wouldn't get this code until I had service for a certain amount of time.  I had several other issues with TimeWarner Cable so I was in their local office on 4 separate occasions and always inquired about this phantom gift card.  It has been over 6 months of service, I have never been called, sent a email, or mail on anything.  

I keep getting redirected or told that a ticket has been issued on my behalf and someone would be in touch.  I did everything they asked plus more and still have never recieved their promotional gift card.  I find this completely unacceptable, escpecially since their service is beyond sub par.  If they didn't have a "monopoly" in Charlotte for Cable and Internet, I would have never signed with these guys in the first place.  This report is coming from a customer who used to work in their Corporate office as a Quality Assurance associate.  I have had good luck with their local associates being helpful and resolving issues I have had but this issue has never been resolved and being transferred all the time just to reexplain the situation is taxing and unecessary.