Steamboy

Hi All still learning about crypto, I have just tried to liquidate an account from another platform and the company say that I have to transfer 50KGBP to liquidate the 90KGBP in my account. The reasons given are that the fund is held in an Escrow account and I need to pay to get it back. This seems like a scam to me, so has anybody else had experience of this requirement.. Other reasons are that the block chain needs to receive my wallet details in order to give a reverse transaction. I fear that if I were stupid enough to go down this route that I would be throwing even more cash away.