If you use a good VPS and they don't realize where are you from then you shouldn't have a problem. But if you tell them you are playing in the UK then they can ban your account and freeze your money.
Source: https://stake.com/policies/terms
I try to find a crypto casino allowed for the UK, but looks like they don't are bitcoin-friendly, looks like a VPS is the only solution for you right now and there will always be a risk involved.