I made a withdrawal for 500 USDT 3 days ago, I'm still 100% I've made more deposits than withdrawals so they should refund my deposits if they have go by their terms.
They will only refund the amount of your last deposit. According to the "
Proof of Payment" your last deposit was 300 USDT. If you have already made 500 USDT withdrawal after this deposit, then you shouldn't expect anything more. Usually, betting site doesn't refund the old deposits losses.
As for the sportsbook thing, 80% of the casinos use Betby nowadays and only a little percentage of those have shady practices. I still have activate Betby accounts as of now.
Are you able to place bet on any Betby sportsbook without having any restrictions? Sooner or later, you will face issues on each platform where the odds provider is Betby. Some of them will act like Chips.gg with you.