Smells like you are being scammed or whatever. Don't pay shit to anyone if asked.
I assume OP is talking about the fee you have to pay to use Bitcointalk if your IP is blacklisted.
That feature was implemented to combat spammers among other things.
I didn't even know such a thing (feature) existed. Is there a post somewhere detailing this information? Not that I expect to need it, just this post aroused my curiosity on how/why it was implemented.