I think that it's BetBy that's stealing your money. I underlined this word because I'm not 100% confident. Have you used a VPN on Chips.gg or any other website that uses BetBy for sportsbook? Are you sure that you haven't used the advantage of arbitrage betting? As I understand, in this situation, chips has no problem with you but it was BetBy that has issues with you. Are you really 100% confident that you haven't made a bet on any website that uses BetBy?
I'll give you the list of sportsbooks that use BetBy. I'm not sure how complete this list is but have a look at it: https://betclone.com/betby.shtml

I don't know if it helps but maybe it's a good idea and worths to contact them? Anyways, here is the url: https://betby.com