Call the airline and tell them you are ignorant of the rules against selling your miles. Maybe your account gets re-opened. Maybe not. You've rolled the dice with the airline and you'll now have to deal with them. Eat crow and hope for the best.

If this Scott person is from Travel Masters, tell him you held up your end of the bargain and to take a hike. What happened with the miles after you "sold them" is their problem.

If this Scott person is the passenger who bought the ticket from Travel Masters, tell him you never had any deal with him and to go away and complain to Travel Masters.

All this junk about hiring contract lawyers etc. is a bunch of baloney. This issue would never see the inside of a courtroom so feel 100% free to sleep well at night.