Century Link Did not follow up on sign up incentives Denver Colorado

On July 6, 2017 I signed up with Century Link for TV, Telephone, and Internet.  I was promised $125.00 in gift cards as an incentive to sign up.  I received $25.00 on or about August 5, 2017.  I received an email Sept. 26th telling me that my reward submission had been approved and that I would receive in 4-6 weeks.  Today, Nov. 7, 2017 I called Century Link and talked to Lorna and was told that my reward was invalid.  I received the $25.00 in error.  I will receive an account credit of $75.00 instead.

This is contrary to what I was promised and that I have had to make many phone calls to find out where my rewards would arrive.  I received so many answers which none of them seemed to be truthful.  I am stuck with this company for 2 years, don't have any other alternative but to contact you.  I have had other billing problems.