Verizon announced a new 3-year price lock guarantee for its myPlan and myHome plans that keeps the rate fixed, while also introducing a new phone trade-in deal.

The three-year guarantee covers the base charge for your rate plan, but not fees and taxes — and you have to be on one of Verizon’s newer myPlan subscriptions to qualify. That means Verizon can still raise your monthly bill in the form of increased fees,

Verizon is introducing a new three-year price lock policy. The policy will be available for myPlan and myHome network plans. Price locking won’t work on taxes, fees, or perks.