Following up on how I resolved my problem.
No amount of soaking in solvent,gently forcing and copious cursing would free my lock.
I bought this from Aliexpress,states for left door but of course is interchangeable ( RHD over here )

https://www.aliexpress.com/item/4000...137f53d6evSCLK

OEM was hundreds of $$$'s.
I'm relieved I can get in now,locked out of your own home or car would be absolute ......
EDIT: My inquiring mind is going to force me to cut the jammed one open and see what was causing the problem.