Xfinity Lied and are charging me incorrectly

This has been a monumental issue for me for this entire month. On February 3rd, I started a chat to attempt to change my Cable Plan from Choice TV to Xfinity Latino, a plan the Xfinity themselves offered me and told me would lower my monthly to $140, as shown in the image below.

I was then abruptly disconnected from the Agent and transferred to someone else, because I was supposedly inactive.

I was then told by this individual that it was actually only $10 they'd deduct to my monthly and that the $140 was never what was proposed and that they were going to remove my phone plan to get it lowered.

After speaking with this new Agent about what I discussed with the previous Agent, they decided to drop a question Mark seconds after sending their last question and disconnecting. This was Rep number three at this point and I was genuinely so upset that no one could get this done for me. I was then transferred to yet ANOTHER rep who I had to explain everything to yet again. They seemingly were able to get it done for me and apply the new plan, taking away the unused channels and only keeping the Latin ones. My bill was dropped and it was fine until it shot right back up to my original price not even days later. 

Here is proof that the price did drop in a statement they sent me by email after the payment was made. 

After this cycle was done, the price went right back up and I had the misfortune of having to start another chat today asking what happened, because the channels were gone and it was just the Latin ones but I was getting charged as if it were otherwise. 

After being essentially gaslit saying that it never happened and that the change never happened, I said I had screenshots, leading them to change what they were saying entirely, telling me that I was right, but that they sadly had to transfer me, AGAIN.

This chat was then ended instead of transferred, so I had to start from scratch again.

After being transferred over and over, having to start a new chat because they would just end it over and over, one person was supposedly able to resolve all the issues and it would be fine. It was not as I still have the full original amount being charged to my account, no English channels and more headaches than I can count. I am genuinely considering taking legal action as I don't know what else to do in this situation. No one has been able to resolve this issue and just given me what I wanted. 

Also as a bonus, here's a screenshot of all the credits they supposedly gave me.