Are these accounts hacked and is their any risk of them being cancelled?
i know alot of the minecraft account generators available seemingly make accounts that work for a little while but then stop.
I would be cautious as a buyer to grab something like this as you're a new account and new accounts are notorious for scamming around here.
Please use caution when buying things from "new" users. Most of the time they are established scammers trying to pull a fast one on you.
OP do you provide any vouch copies or what?
I can give one vouch copy if you buy with same time, you can change email password username etc.