Not to worry anyone but I spoke to Samsung Supervisor this evening in the UK who also offered me a replacement.
When pressed she said we have no idea when UK stock will be replenished, I said could it be 3-4 weeks? Possibly not but we have no idea at present..
I asked if I could retain the faulty one until they had stock, she refused, I refused. No further forward.. Frustrating isn't the word.
If they tell me that they don't have stock and I have to wait for several weeks I'm getting my money back and will look at getting a Garmin, the Huawei Watch or another Google Wear OS watch.