TIkTok and Apple Sign-in

Hello,

I am unable to received the email confirmation from TikTok to verify my apple signin alias email address.

XXXXX@privaterelay.appleid.com

I am able to signin alright but they keep bothering me to get my email or phone.

Is there a way to allow this email to be use by anyone even for a dedicated short time ?

Maybe they changed the domain from which they send the email ?

Or they want to get my email / phone which I do not want to provide. Reason why I use AppleID sign-in.

Is there other people in the same situation ?

Did anyone manager to confirm their Apple Signin email with TikTok ?

Thanks