Why did I get a text about an increase for the One plan?

This is illegal by T-Mobile we.all l have contracts with price locks I spoke to a representative today. She confirmed. I did have a price lock plan that they could not change the price until I changed it. I never changed the plan. Need to contact class action lawsuit, Hagens Berman They did the last class action lawsuit against T-Mobile for data breach . If enough people  file a complaint or request the class action lawsuit There should be a class action lawsuit. Our contracts are illegally binding and this is illegal. We all have contracts. We all have voice recordings of the contracts. T mobile is doing this illegally.