I cannot pass address verification because I no longer live in the country I provided ID for.
I know, its my mistake. I should not have used a VPN to bypass the rules. (I now live in a restricted region)
Does this mean that Shuffle.com can now withhold my funds indefinitely?
Anything I can do to withdraw my funds?
Yes, sure enough they have the very right to confiscate your funds due to this reason that breach their own terms, unless you want to submit fake documents which i will not recommend.