Your service plan and Boost shield will hold due to insufficient funds. It will run its program automatically after your successful payment. That means if you failed to pay their monthly charge Boost Shield coverage will be dismissed and you won’t be able to use your phone. Suppose, you are a monthly plan customer and pay $45 monthly. You have a Boost shield program that charges $7 per month. So, the total amount stands at $52. If you don’t have $52 in your account at end of the month. Your service will cut and Boost Shield Coverage will be absent.