Thinking a bit more about this cash fee, I seem to recall that PAYNOVA offered 2 methods of payment. One was a "pay as you go" (type in CC details for each order) method, like WorldPay, the other was a system where you registered for a PAYNOVA account and paid money in advance into a "wallet" (I think) which could then be used for purchases without having to type in CC details again.
I didn't want anything to do with the "wallet", since that would eliminate a clear link between a PAYNOVA CC payment and an individual order. The lack of such a link put me to a lot of extra work in reclaiming my o/s DVD Soon CC payments, and I wasn't going to risk being in the same position if CD Wow went bust and I needed to rely on chargebacks again. So I used the "pay as you go" method each time.
It occurs to me that there may be another disadvantage to the "wallet" method. Payments into the "wallet" would not officially relate to a specific good or service, so might be treated as cash advances. This might happen even if you only paid in enough each time to cover one particular order.
Of course, that's just a theory, and might not apply to partyweb's situation. And in any event, I see he's already got his money back from his CC company. Good on you, mate!
