ProvisionHost has apparently undergone management changes or had some other severe problem. They've stopped responding to billing tickets. (I haven't gotten a response since 6/18/2015.)
In this case, ProvisionHost was accidentally overpaid and didn't acknowledge the payment. Instead of refunding or crediting the amount, apparently they decided to either pocket the money and run, or else pretend it didn't happen.
In either case, it's a shockingly dishonest business practice, and a complete absence of any response to communication for three months.
Do not go with ProvisionHost, and if anyone can find their business address (since I don't see it on their website), please post it here or forward it to me so I can pass it on to the FTC for regulatory complaints.
Please PM me with your ticket ID and we can look into this further for you. Any overpayments are automatically credited in our system.