It’s easy enough to tell if a rack is leaking or not. Leaking seals point to the pinion seal at the steering shaft or the rack seals on each end of the rack housing.
If the dust boot on either end of the steering rack appear to be oily then the rack seals are leaking.
If you can’t inspect this yourself then get another opinion on it at the least. Inspection should take no more than about 30 seconds.