Cryptomart asking for withdrawal fee in advance?

..thank you so much for the response…we really need an expert opinion and some advice in this matter..
…the website my husband used is CryptoMart.com but in their terms of service they used the name CryptoWorld…they are based in the Philippines but orginated in Indonesia..
..my husband has already sent them 15k to purchase cryptocurrency..he started in March and they claim he made 225k in less than 4 months..he did it in two steps…first 5K was spent and they showed he made 48k..then he sent an additional 10k and they said he had made 225k…at that point he asked to withdraw the money and they said they do not deduct from the balance but require 5% cash upfront to withdraw…the fee is 11.5k…at this point I became aware of the situation and convinced my husband to withhold any more money although he had already borrowed to pay this fee…we have not paid the fee and he did ask them to reverse the request as we were going to attempt a much smaller withdrawal as a test..of course, they said it cannot be reversed…and that is when I posted for help..
…it may not be relevant or helpful to us but this came about when my husband was approached by a young (36 supposedly) lady on Instagram who claims to be South Korean and was “looking for friends”..he accepted the friend request and they began to have conversations during which she said she traded crypto and could help him to do it also…he has been interested in giving it a try and he said he would…so she directed him to this website and then guided him step by step through the entire process until now…she also said her uncle was a stock analyst who guided her..
..again it may not be relevant but if this turns out to be what I think it is, I do believe people need to be warned…yes, he was not wise to do this without researching but he wanted to surprise me and he knew I would be reticent without further investigation…perhaps that is not relevant either but I felt I should mention it..
..if you can please give us an honest opinion so we are sure of my suspicions or know it is an honest deal, we would be very very appreciative and we are sort of in limbo right now…and we do realize we may never see that money again but my husband especially needs to have an expert tell him whatever the truth is..
…sorry to write such a novel but I sort of needed to explain how we got here…
…again, thank you so very much for any light you can shed on this mess..

Carmelita MacLeod