Rear electric window regulators

[Ciotog]

Both rear electric window regulators have failed on my K9 within a month of each other!! It appears that the metal wire that runs through the motor has deteriorated and failed. Has this happened to anyone else? It seems like a faulty part or batch as very unusual for both to fail so soon to each other, and on a 2019 car...

Does anyone know of a repair kit that can be used on this car? The motor etc are all fine, just a replacement wire and plastic wheel guides should suffice. I can find plenty of repair kits for the older Partners/Berlingos but nothing for the Rifter or K9 Berlingo.

Also... The stickers on the parts show 9817212480 (RHS) and 9817212580 (LHS), but this doesn't seem to be the correct part numbers. Anyone got any idea?

Thanks!!