PremProxy uses two-step bank card payments processing with pre-authorization on the first phase.
This means that at first money is reserved from the client’s fund without charging bank card.
So, when the payment is going with pre-authorization you can receive from our payment processor a message like that:
Money was successfully blocked on your bank account. For more information on charge-off or payback please ask from merchant's site.
That is how it looks on payment page:

A pre-authorization is a temporary funds hold, not a true charge. It will usually only show up on a banking statement as “pending charges”.
Then (after your order is reviewed) we have to approve or decline a payment .
If we authorize a payment a card is being charged (it's the second phase).
If we decline a payment the hold is being removed from customer's money.