Sky Phoncall To Wipe debt ?

Hello, my daughter has had a £180 debt with sky for several months with the service then being cut off but yesterday received a phone call from them supposedly inquiring about how she intended to pay the debt off.....once she had explained the payments she could make and the dates payments would be made they replied that as a gesture of goodwill they are happy to wipe the debt clear and start again as long as she sets up a new direct debit ????............is this a new scheme to keep customers?... , it seemed that as long as she was willing to sort the debt they could then offer to wipe it ......has anyone else had this call ? ....seems to be unfair on the people who do the right thing and pay their bills IMO