He is with Metro/T-Mobile (pre-paid plan) and T-Mobile is now doing a promotion to switch people over to straight T-Mobile, and you get a free phone. He filled out the paperwork at Metro to switch over, then he changed his mind and sent back the phone. They now say he owes them $300 but he got that charged removed. But now a debt collector is also trying to collect $100 for phone damage on the returned phone.