[Citroënbender]

OK, can’t offer suggestions of whom to see for parts/repairs but do you know the old school method of tapping the “anti-theft” bolt loose on the steering lock, with a centre punch?

It’s just a standard thread so when all is fixed you can use a standard bolt and Loctite to reassemble.

Tape the key head securely into the transponder ring around the ignition lock and you can then jump wire the ignition to operate.