At any point within the 15-day trial period for the Organization Account update in Seller Center, you can cancel the update of a Personal or Business Account to an Organization Account.
Ensure that your Personal or Business Account is in the trial period for Organization Account update.
To cancel the update of a Personal or Business Account to an Organization Account in Seller Center:
Log in to Seller Center.
Go to My Account.
Depending on your account’s configuration, you may see My Account by clicking your profile icon in the top right of the dashboard, or in the left-hand menu.
Click Linked TikTok Accounts.
In the Official account tab, click Cancel update.
Click Confirm.