For what it's worth I won like 30k on there and was frustrated by their live chat support as well. I got KYC verified within 24 hours though and I was using VPN. Maybe try using VPN as well to bypass the visa requirement?
@Op, I will strongly advise you to ignore this response — using VPN will most likely lead to more complications and put you in a position where you can no longer defend yourself if anything comes up.
J