Been seeing mostly mixed opinions on sportsbet.io in the past. Been reading quite a significant amount of negative feedback on it though, so I really personally wouldn't use it.
This dude also ran into a problem with them in the past:
https://bitcointalk.org/index.php?topic=3518073.0Anyway, have you tried contacting their support? They MIGHT be able to help. It wouldn't hurt to try.
https://sportsbet.io/supportI am trying to communicate with their support staff. But they only replied to the email sent to me KYC, and then there was no news.