Apps NatWest banking watch app keeps saying it needs Activating!

Try uninstalling then reinstalling. It didn't work for me but in the reviews on this latest version this has been used to fix watch activation issues.
I tried that after your post, but still didn't work.
Just checked the watch app this morning and it's working now?!
Maybe they fixed it after your call!
 
I had this issue as well, delete the app from the phone and the watch, text STOP to 82628. Then install both apps again and it should allow you to activate it. This should hopefully work.
 
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