I'd like to place a big bet of 50-100k, else done something like this?
feel free to message me or comment below

This is my message to you. This amount you want to borrow on loan is too much to throw into a betting game. Remember it is not a guarantee that the money used in gambling will come back in winning to you. You may see the game like a banker but it outcome is not sure. Take a deep breath even if you an addict, don't throw such huge amount into gamble whose chances of winning is not in your hands but just a lucky tried.