Rude floor Manager

We were at Dros Middelburg when we had a very unpleasant service from the Floor Manager .Whom he gave us an attitude and when we asked what is it that we have done wrong .He told us that he is making us a favour by us being there.We were very offended because how is he doing us a favour while paying.I hope Dros Middelburg sorts their management out for success of the business