Hi and welcome to the forum
if a white Hav has cream ears then they are a cream and not a true white.
here is a couple of photos of one of my girls who is a white, minus a couple facial stains.
Zmrzlina as a new born, I circled the one that was her, though she is the only white one in the litter, the others are cream
The latest picture I have of Zmrzlina when she won at Nationals last year