532 120 Does Anyone Know About Verizon Billing?

Does anyone know about Verizon billing? - 532 120

I switched from Sprint, Verizon. My first bill was 120.00, which I thought was high, Today I received a bill for $ 532.75. I'm broke, I have a selection of America plan. I'm not aware of using my cell phone. It seems that there are many calls I do not know. Give yourself a chance to update your minute plan. HELP This is the way to high!