hey, maybe your gambling app has obsolete transfer protocols?
yeah, I agree with you, because it’s a real problem of gambling sites and apps - developers simply stop supporting it, so, the app became vulnerable and it hurts the security of accounts… For example I played on such a gambling site and once I simply couldn’t withdraw my money because of the reason I wrote earlier. However, I’m a venturesome person, so I found another good site https://bet888win.net/ where I can make bets and play my favorite casino games without any worry that my money will be stolen 
Really, 3 years of use of this site and I had no problems with anything…
3 years of use of the same betting site? that’s called trustworthy users