Hey Cusan, I dont think CasinoGrounds has any contact or deals with that Casino **Correct me if I'm wrong**, so I'm afraid they might not be able to help you. My advice is: Just wait a bit, give them more time. I think the smaller casinos will have less staff and can take a lot longer to solve issues in support and verification. Just be strict to yourself and dont use the money to play if you want to cash it out. Maybe make a small deposit on another site and play there!
Gratz on making the wager, and hope you will be able to wait it out and get it solved soon. Make sure to check if the documents are okay though because different casinos can have different terms for those documents.. some need to be like max 1 month old (For adress verifications etc)..
My guess is if the livechat tells you to wait then you should probably wait, and maybe kindly ask them for an update about the verification process trough e-mail or something!