After 24 years with Verizon I decided to go to a better and more respected company. I had an unlimited data package for years and they wanted to change it with the new phone I was buying.
They are encouraging you to keep changing companies. The same thing happened with my Fios I changed when all my credits were finished and if I wanted to come back six months later I saved more that amount plus more.
They don't care about customer's especially long term customers, find an alternative. Thanks for listening to me make sure you look around