Need DirecTV help to prevent me from cancelling my service for good this time

I am a very long time DirecTV customer (over 20 years).  This past November I noticed my DirecTV bill was over $260 per month - apparently, I had several incentives that had expired.  Before contacting customer service, I took a look at Comcast prices to compare value and found for the same channels / number of boxes their cost was $170 per month.  I then called DirecTV to let them know the difference to see what we could do.  After spending 30 minutes on the phone with customer service the agent explained the best they could do is reduce the bill by $40 per month.  Unfortunately, I could not justify the extra $50 per month for the same service so we agreed to cancel my service effective the end of the billing cycle.

About a week later, DirecTV called me to reconsider cancelling and we spent a considerable amount of time on the phone (45 minutes), however, I did agree to stay with DirecTV for $183 per month (which required dropping a few channels I rarely watched) with no contract and a 2 year price lock.  This was a little more than Comcast, however, to date I have always been happy with DirecTV and preferred this over changing service providers.

When I received my next bill in December, I was surprised to see that the new rate was not applied.  I again contacted customer service to correct the problem.  Upon my first interaction with the support team, they were able to review notes in my account and see the price agreements that were made and also could see the most recent bill did not reflect that pricing.  However, getting the issue corrected took nearly an hour of being transferred from person to person finally resulting in a credit being applied to my account to make up the difference in price.  The customer service agent apologized for the confusion and let me know the problem was corrected.

I just received my January bill and again noticed the new rate was not applied.  I had to contact customer service again, for nearly an hour again, being transferred from person to person to again get a credit for the difference.  This time I asked the customer service agent to confirm this would not happen again and was told that it would not, however, I then asked what they did to correct the problem - the agent replied "I can see the agreed to pricing in your account notes so I did not need to do anything, it should be corrected next month".  I am not confident of this at all.

I am very frustrated.  I have very old equipment, I'm paying more than the competition, I have fewer channels than I had before, and I have spent ridiculous amounts of time on the phone.  If I do not have the correct bill next month - I'm out, for good.  Customer service used to be one of the best things about DirecTV.  I could have been off the phone in 5 minutes (and happy) twice if the first customer service agent on each call simply said "I see the agreed to price in your account notes and the difference in your bill ... I'll correct the problem and send you an email to confirm the price correction".

I'm not interested in any more time on the phone, just a correct bill.  If anyone from DirecTV cares, please look into my account and ensure the correct amount will be billed next month.

I hope this works out this time.

Bill