No. Every account we sell is created specifically for sale. There is no previous owner or player who could recover it. This is different from marketplaces that resell accounts from real players, where reclaims can happen.
We still recommend securing the account for full control, verify it matches your order first, then follow your game's login and setup guide, since the right timing and steps vary by game (HoYoverse accounts need several days of active play before changing any details). If you ever run into an issue, our support team will help resolve it under our refund policy.