I don’t use the device so I don’t want to be charged or use it,
"If you'd still like to cancel, give us a call Monday – Friday, 8:00 – 6:00pm EST, at 1.844.837.2262. Remember to have your account information handy. Once your service is cancelled, don’t forget to utilize My Verizon to check the status of your final bill, equipment return, and refunds, if applicable." from https://www.verizon.com/support/residential/account/manage-service/cancel
Most definitely NOT a VZW employee. If a post answered your question, please mark it as the answer.