Poor service and insensitive service towards pregnant woman

I have been meaning to leave this review for a while, so I went to truworths creasta store to look for a pair of seamless undies so I did find a pair but couldn't find the size I need I went to the front to ask help, I told the assistant I needed a Large as I was 7 months pregnant at the time she helped me looked but what I found very insensitive of her was when she called her colleague from across the shop who was in the kids section to say ask for a LARGE panty size and the back and forth went on with laughter over the size, firstly I took great offense as I went to the store to look for something for my comfort due to my condition to have people laugh over that was extremely rude as it speaks very low of them/store as it's clearly not a safe space to shop in peace and not be embarrassed thru the shop from them shouting out your size, I didn't say much as I was with my 2 year old, I ended up opting for an online order just so I can get out the store. But to the shop it's very sad, appalling and disgusting as they didn't consider who they dealing with pregnancy is a hard period and unfortunately we don't get to pick the size of body or shape you get to be and even if I was not pregnant is it part of their training to discriminate against plus size people.