Primedice just posted this new rule :
Unfortunately, our current server provider is not allowing us to accept Russian customers. If you are trying to enter Primedice through a Russian VPN, or your location is Russia, you will be automatically redirected to our Forum. If you have an account that you can no longer access that has balance in it, please contact Support and they will be able to help you out. This decision is out of our control, and we hope to have further updates when or if they become available.
We apologies for any inconveniences this may cause.
Source : Primedice.com