off central steering wheel when removing sub frame

Just had my console bushes done today, when picking the car up the steering wheel wasn't straight. Garage said it was strange because the tracking was done and it was right. Told them I had the same problem last time the sub frame was removed by jabba to fit my clutch, on re assembly everything was right but yet again an off central steering wheel? They found this very strange? Anyone had any experiance with issues like this? Takin car back in on Wednesday to sort it. They said because the tracking is right they might have to re position the wheel.