Two teenagers 13 and 15, girls. 15 old smashed 13 year old phone this morning. I was in bed as I'm unwell and DH was downstairs with them. They usually get on well apart from the usual sister arguments. I'm always on top of it when it starts between them and put an end to it. DH however is partially deaf ,doesn't wear his hearing aid and so doesn't always intervene on time.
Anyway things escalated and phone is now smashed. DH said that DD15 has to replace the broken phone which means she won't get all of the Christmas presents she wants. She also has money from her Grandmother from doing well in her exams that DH has said she needs to hand this over too.
DD15 can get very angry and has blown up at me before. Prior to this DH has let her away with a lot. I stayed out of it upstairs as I knew DD15 would turn on me if I said anything.
What is the the right and fair thing to do.