Guaranted price lock?

Me too! This sucks. They are not keeping their promises!?? 

I've been happy with T-Mobile for a few years now, and thought I was with an ethically operated company.  I've had no reason to complain.  However just today I also received a text that in 2 weeks they are increasing my price.  But when I signed up I was promised a guaranteed rate of $70 per month for 2 unlimited lines on Magenta for 55+ and promised the rate will not increase.  Now according to the text message, T-Mobile wants $10/month more than the guaranteed rate.  Sorry, the price increase and therefore the change in terms is not acceptable.  Do I trust T-Mobile? 

Yep, In my opinion T-Mobile is involved in deceptive business practices. Because of this practice I no longer recommend T-Mobile to anyone, in fact I tell everyone to stay away from them. Their deceptive action has forever changed my views of this greedy corporation. I no longer purchase any phones from them and instead choose to buy unlocked phones from elsewhere, including my latest 2 new Samsung S24 Ultra phones. T-Mobile used to be a good company, now they suck and it is costing them money with poor customer satisfaction due to their greed.

I'm in the same boat,  Was guaranteed no price increases ever by Sprint.

When T-mobile bought Sprint, they bought any obligations that Sprint had, including my lifetime fixed price.  If they didn't like this arrangement, then they shouldn't have bought Sprint.

Shame on you T-mobile for not living up to your committments.