Total Wireless overpayment

Anyone know how Total Wireless deals with overpayments? Would like to try them out but not sure about long term due to the higher price...

https://www.totalwireless.com/termsandconditions

What did you have in mind?

If I pay ahead for 3 mo then decided to port out to a better deal, do I get my "Total Wireless Reserve" refunded? If so, does it go back to the original credit card or does TW mail me a check? For example, I prepaid my Sprint 1 year free but ported out to Mint... Sprint will mail the overpayment to me as a check in 60-90 days.

None of these prepaid services will refund credit. Balance will be forfeited if you port out.