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

I live in South Carolina.  I have submitted complaints to both the FCC, the SC Consumer Affairs Dept, and the SC Attorney General.  I have received responses from all of them.  Basically, all of these organizations say they have no legal means of requiring T-Mobile to do anything.  When I heard from the SC Consumer Affairs and the FCC, they both had heard from T-Mobile and sent me a "we received a satisfactory response from T-Mobile" letter.  I responded that the T-Mobile response was blowing smoke and contained lies about my plan.  Both FCC and Consumer Affairs offered to send my rebuttal to T-Mobile and see what happens.  I haven't heard from the second round.  I see online that my next bill will contain the increase.  I'm going to try to obtain a copy of any original paperwork that I signed when I originally set up the plan with them.  News at 11.