They were not on the crust, they were embedded within the bread.
Embedded in the crust? I have seen bread before.
These are embedded
There is bread with sesame seeds and there is bread without. It is easy to tell no? trained to spot allergens? Pull it apart, eat a piece....ingredients are ingredients.
Let me ask you this, when you go to a seafood market, when you look at a piece of Cod, do you look for a sign that says "may contain fish" ?
"Allergen Warning: May contain Allergens" (you sort it out)
personal responsibility