I see that you have freebitco.in FUN address. Do you by any chance have their BTC address too? It would probably be a good idea to check the status of the funds there just in case to see are they near bankruptcy and if there are any movement of funds from/to their cold wallet.
None of us have any idea about the current Bitcoin cold wallet address of Freebitco team. However, Freebitco team had kept BTC (also some ETH) on their FUN token cold wallet address. It was on ERC20 network. The amount was
worth $114 million during that time (six months ago). They had taken out the funds from that address on the next month, and now we don't have any idea about their cold wallet address for Bitcoin.
BTW, we have noticed that Freebitco team is gathering the small deposited funds of the users in a
single wallet address, then they are using that funds to process the withdrawal of the users nowadays.