Well this is a VERY old topic but actually I remember that advert really well. It was a search for the ad that led me to this website.
The woman didn't phone.. if you remember, her husband/partner looked up the shop in yelllow pages then, on the way out the door, he asked, "Are you SURE that's what you want?". The woman nods and the guy, then, shows up at the pizza shop and says, "One ham and mushroom please and one tuna fish and... *blushes* ...banana!", then the pizza chef turns round and says, "BANANA?".
The guy shrugs and repeats, "banana!"
The chef then shrugs and makes the pizza.
I remember every line! :P