It just doesn't make sense that a casino would force you to give your information. They could give any reason they want but it is never truly enough to justify it in my mind.
Wasnt it only level 1 KYC thats basically only for formality? You can basically put in anything that you want in there and Roobet wont even bother you with that unless you probably do something fishy on their site. Anyway we know that this is coming for sure, with crypto especially crypto gambling being regulated then submitting your KYC could be the new norm around anytime soon