Any bms repairers in the uk?

[Torqu-E-Cycles]

I have a Raleigh stow e way battery with a faulty bms, does anybody in the uk repair these? I run an ebike battery repair shop but this one is beyond me sadly!

Its causing cells to go out of balance whilst sat overnight, nothing wrong with cells its a rebuilt battery with new cells and the same fault remains.

 

[Comrade]

I doubt there is anyone in the whole world who repairs these. Even if it didn't have that protective varnish on it.