T-Mobile breaking promises to seniors who were offered price-lock guarantee for life on 55+ rate plans

Like so many others on this thread, I signed up for this 55+ plan years ago, banking on the guarantee that T-Mobile provided which was that the only one who could change this plan was me. I filed a complaint with the FCC (received an acknowledgement that they received my complaint) also filed a complaint with my state's Attorney General, and with every local TV station that has a consumer reporter and with every tech show I could think of. I also contacted T-Mobile, first by phone and then by email, to let them know that I am not willing to accept the change to my plan. I called a local radio station who has a show hosted by an attorney that dispenses 'marginal legal advice' - he cautioned me that if I do nothing and just go along with the price increase, T-Mobile could later use that against me, saying in effect that when they raised the rate and I paid the increased rate, that was a sign that I accepted the price increase.   On May 29th I received a phone call from Brandi Ware in the T-Mobile corporate office, offering me a one time credit of $120, (i.e. $5 per line for 12 months) to offset the increase and to give me time to find another carrier. I thanked her for the offer, and told her (by email) that while her offer might seem generous to her, it was unacceptable to me. What I wanted to see was 'specific performance' - i.e. T-Mobile honoring their guarantee of no price increase for life. I told her that failing that, when the price increase appeared on my bill, I would file a claim in small claims court against T-Mobile. I told her that based on my estimates (and I still need to crunch the numbers to come up with an exact figure) I have lost about $2,000 by sticking with T-Mobile over the past seven years (84 months), and not switching back and forth between other carriers to take advantage of their artificially low introductory rates.  I'm in a waiting game right now, because I can't do anything until the rate increase shows up on my bill. And even though the text notification I received from T-Mobile told me that it would be effective on my first bill after June 5 - my latest bill was today (June 6) and it was at the old $60 a month rate for two lines, so until the rate increase shows up, I have no damages to recover, but when it does I will plan to file a small claims action to try and recover what I lost by taking T-Mobile at their word that they would never raise my rate.