Some sellers are listing accounts that the original owners or themselves still have access to, I had bought a Genshin account and a month later I was signed out and the credentials were changed i had no way to regain access, had to dispute with my bank as gameboost does not have a refund policy as its not right how my money is gone and my account. Really flawed system, I had 2 accounts from 2 separate games with this issue. Its best to buy from sellers with really positive reviews.The other account was a fortnite account, the seller had listed it as "linkable to xbox" so when I had purchased the account and went to the epic games website to link to my xbox, the seller hadn't removed the xbox account already on the fortnite account, so I have to wait until January of 2026 to be able to link it.
