I also heard about this casino first time and decided to check the site (without depositing of course). Going through the terms and conditions here
https://www.dexterbet.com/en/info/terms-and-conditions, i found that you can deposit in EUR only, so it means that they do not accept cryptocurrencies???
We accept payments made in EUR. We only settle credit and debit card transactions in EUR. All debit and credit card payments made using other currencies will be settled in EUR. Please note that you may be charged by your bank or financial services provider as a result.
While on their "deposits" page, it says they accept some crypto. This discrepancy needs to be questioned further.
In addition, they implement KYC requests on registration, and it is strange that when a user requests a withdrawal, the user's identity can be declared incomplete and must be re-KYC.