Top tier worst and lying customer service ever

I have been dealing with a bill increase for MONTHS and have yet to come to a solid compromise. Right after I noticed the increased bill on my statement I reached out to customer service and the bill was still gonna be higher than I liked but seemed an ok compromise... Then literally only a couple weeks later my bill is literally almost the same as before I reached out to customer service and so the saga of trash begins. Conveniently another one of my discounts fell off literally like a week after I talked to him. Like seriously! I literally didn't even get one statement before my bill was increased from what the customer service rep had told me.

Now I've been fighting literally every month to get it to an acceptable rate, which I thought should have already been done. The customer service reps are doing the bare minimum to get me off the line and move on. I have consistently been getting a credit which helps get it closer to the rate the first rep agreed to but do nothing at actually resolving the issue. When asked about what could be done so this issue would be solved for long term they feed some sort of fib to get me off the line. They either try to sell me on the credit will be reoccurring or the "Don't worry we're forwarding your account to our superiors they'll reach out to you with a better deal." Then the next month we have to do it all over again.

This month takes the cake because the representative didn't just help and then fib, he straight up lied to me about a deal and then fished for a good review. I reached out to the agent ready for the normal dance. This one did not try to offer me a credit, instead he told me that he found me a better plan. In his description I would be able to keep the same plane but it would be for a cheaper rate. I was suspicious but figured what do I have to lose. He even without prompt told me current bill would be adjusted to this new rate. He continued to layer it on when I told him I already had xfinity mobile that he could add a discount on that account too. Then after all that was "set up" he went fishing for his good review again. Here we are almost a week later when my bill is gonna be due and low and behold my bill is still the exact same as before I reached out to him and if I go look at my plan and upcoming bills everything is priced at the exact same as before "his help."

TL;DR Ive been trying to get my bill lowered after "expiring promotions" for MONTHS. This month proves they're the worst, when the rep not only didn't give me any sort of discount but lied to me that all my issues would be fixed... It doesn't matter how long you've been a customer or if you're a "gold" member xfinity is only out for making as much money as they can and the customer service reps will say whatever to get a good review/get you off their line.