Since when is h-a-m pronounced Pepperoni???

Recent order to Dominoes Pizza: "I'd like a mushroom, olive, capsicum (green pepper), tomato, and ham pizza, please." 

Response: "Do you want cheese?"  I guess I'd thought that was a given.

My answer: "Yes, cheese too"

Response: "A margherita pizza?"

Me: "No, mushroom, olive, capsicum, tomato, and ham"

Response; "on margherita"  Ok, now I get it.  Order the base cheese pizza and add the rest.  Makes for a nice expensive pizza.

Me: "Yes"

Response: "you had pepperoni last time"  How nice that big brother Dominos is tracking what I'm eating.

Me: "Yes"

Response: "you want pepperoni?"
Me: "No, I want ham"

Response: "the pepperoni was fine?"

Me: "Yes, but ham this time"

Response: "pepperoni was ok?"

Me: "YES"

Response: "magherita, mushroom, olive, capsicum, tomato, and pepperoni?"

Me: "NO!, HAM!"

Response: "you like pepperoni?"

Me: "Yes, it was fine"

Response: "ok, I'll give you pepperoni"

Me, giving up: "fine" 

 

Later it dawned on me, the person taking my order was probably thinking "How many FLIPPIN' ways do I have to tell her we are OUT of HAM???"  Discussions are circuitous here and nobody wants to disappoint, therefore options are offered in place of saying something is not possible.