Years ago, I had a Mini (which I had owned from new). One year it failed its MOT on excessive play in the steering column bushes. I took it to a local Mini specialist, so I entrusted him with the job of fixing it.
When I got it back, the steering was very stiff, and would not self-centre. I took it back, and the business owner told me it was normal unmtil the bushes had bedded in. I said it wasn't, and it certainly didn't feel that way when it was new.
He wouldn't have it, so I drove it away, to another Mini specialist whom I had used and only stopped using because I no longer lived near his premises. On his forecourt, the steering failed completely!
Back to the OP, I would say don't drive it, but hope you can get it sorted and be back in business very soon.
John