Evening marketing calls.

So it is 19H30 on 2020-06-23 and a marketer for Foschini calls to our home line just to offer airtime and great value for money. He was really courteous. But at that time of the evening? When I ask him why that time of the evening he answers me by saying that they do work until 21H00. Is this the policy of Foschini to call people to their private land lines at night just to offer airtime? This is totally unacceptable. Where is the respect for people? Why?