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

I too  was told  when I signed up for 55 and  over  plan 10 years ago  that  price would never increase .

So  now found out  has  gone up 12 dollars from what I had paid for the  past 10 years . 

I  called and  talked with  a  young lady who at  first seemed  to  not  know why it had increased , put me on hold a few times.

Then I was  told  could switch to  another  new  plan and it would stay at  70 dollars . I mentioned I  had  several  promotions that am still on. She  told me I would not  loose them . So I went  to  store today and  asked  same thing . I was told I would loose those promotions . I  am  currently  shopping  around for another cell phone service, since T-mobile  is  not  keeping  their promise.

I went  though several T-mobile data  breeches  and  those  breeches ruined my email account . Also even though gave  a  free  promo of  monitoring you  credit . The  scammers  are  not  going to  do  anything  until the  free service  is  stopped, which  the  free service  did end before the  scammers  did .

So  here I am  paying  more being  a loyal T-mobile  customer through  3  or 4 data  breeches , and  they  broke their promise . They  expect me to  stay  loyal still  ??

Something   is  really  wrong with this way of  doing business