Chances are it’s just not feasible to offer feedback, which, in all honesty will probably only tell you that you didn’t score highly enough in the online assessments. I doubt whether at this stage anyone’s application would have even been seen by a human. It’s easy to give interview feedback because there’s a lot fewer candidates to get through, and this can be done by the interviewing manager via HR.
The initial assessment outcome doesn’t tell you you’re unsuitable, just that there were thousands of applicants, and not everybody can get through to the next stage. Realistically though, those who don’t live within an hour of the depot, are easy to sift straight away, although it’s not guaranteed that’s the reason.