VQ
My nephew was a delivery driver for a chain of high street chemists and he had a very similar experience. I do think this type of thing has more to do with the likes of managers, supervisors, rather company policy. When his complaint went to the company HQ, like a lot of companies they backed the supervisor against him. They actually did nothing wrong, just vindictively made his last month of working for them horrible..
He learnt long after leaving the supervisor got pushed out, much to a lot of the workers joy. The problem is as I say the company had not under employment law done anything wrong and it was a case of live and learn.
I hope his new employer is a little more considerate of it's employees.