Did not receive promised credit

I spent hours on the phone with multiple agents trying to lower my bill, which has gone up substantially just within a few months. The first agent I spoke with told me that he could remove some channels we don't want which would lower the cost. I clearly told him the type of programming I wanted to keep and he confirmed that I would have that programming. He quoted me an acceptable rate and processed the changes. I turned on tv a few hours later and discovered that I no longer had access to the channels I expressly told him I wanted to keep. 

I called back and got a different agent. She told me that the first guy had downgraded my entire plan to get the lower rate. And, then she had the audacity to say that if I wanted my plan restored to the way it was, my rate would be MORE than I was originally paying. I asked to be transferred to someone in the cancelation department. The agent I spoke with there, after almost an hour, was able to restore the programming I wanted at a slightly lower rate than the original. He offered a $60 credit to make up for the hours I spent on the phone. 

I have checked my account a number of times and there is no record of that credit. Am I going to receive it or did this agent lie like the first one I talked to?