I've manged to get it. Their servers are battered, I got directed to the Polish Epic store, didn't understand the Russian and Chinese ones I got redirected to! The good news is that It's the premium edition if you like playing online.
I can take it a step further and say I've never played any GTA game - they haven't really appealed. Now this one has hit my price sweet-spot I'm going to give it a whirl. Will make a change from getting murdered in CoD: Warzone