@OP, we may not see any progress of your issue here until the representative of Chips.gg get back online. I can't suggest you any mediator as your issue is related to sports betting. Because they aren't available on Askgamblers. Another user is waiting here for
almost one month to get a response from Chips.gg team. I'm mentioning 'holydarkness' here so that he can also talk about your issue with Chips.gg team if he gets in touch with them.
I don't have a contact from chips, but I guess I can try to exhaust a way or two to get ahold into that info. Somehow though... I kinda have a feeling that we've already got the answer. Do you, or any overseers here, know what sports-provider is with chips?
Is it common practice for this casino to block players? Is this considered normal?