Hi, there are such Fortnite accounts at mmoga or wherever the accounts are stolen or cracked if you can crack the accs | sorry for the question😅
The sale of Fortnite accounts is prohibited, which is why such offers can only be untrustworthy. At MMOGA, however, I heard that if you buy an account there it can happen that they simply take the account away from you, even if you still have something paid into it yourself. So partly fraud. MMOGA might be ok for Windows or Steam Keys, but I wouldn't buy Fortnite accounts if I were you.