No. We create every account we sell specifically for sale. There is no previous owner or player who could take it back. This is different from marketplaces that resell accounts from real players, where the original owner can sometimes recover them.
We still recommend that you secure the account. Check that it matches your order first, then follow your game's login and setup guide. The right steps and timing are different for each game. HoYoverse accounts need several days of active play before you change any details. If you have a problem, our support team will help you under our refund policy.