Used Visa also, forwarded all requested info, but no verification. My Interac transfers with RBC, handled by Gigadat, never show the casino name funds go to, only a Gigadat tranfer.
No problem with the other 20 plus casinos I play, but Billy is special and requires a doc showing a deposit from your bank to them specifically.
Two weeks sending every bank doc I receive, but impossible to get verified by King Billy. King Billy was fun to play, lucky to win, but forget cashing out.