Halloumi veg pita with minimal halloumi

I purchased a veg pita with halloumi cheese for my partner. After dropping it of at her work she sent me a picture of the rather small amount of halloumi in the meal. The next day I went back to the store in Musgrave Centre to complain to the management who advised that "halloumi is expensive that's why they don't put alot", he asked his staff to portion out the amount they use in the pita and show me, when I saw the portion it seemed much more than what was served to me. I questioned this and the management response was that "it shrinks while cooking". I didnt eat the pita but my partner has eaten it in many other branches and has never experienced having recieved so little halloumi in her meal.