I don’t see Hiding emails code in my apple mail box

Hi! I have a problem. I recently signed up for an online clothing app account using Sign in with Apple ID. However, I am not able to receive any emails from them. How can I see emails from them? They are not forwarded to my verified email address (I have checked all folders including Junk).

I don’t see Hiding emails code in my apple mail box
 
 
Q