Body Positivity Gone Wrong!!!

I am failing to understand how Mr Price says that they represent all shapes and sizes, yet designs clothing that says the complete opposite. Their stores never have sizes for plus size people and their online store is worse. Makes designs for people with small waists and thighs. I recently ordered 6 pairs of jeans and only two fitted. What a complete waste of time and money. I got to the store to exchange the jeans and they had no big sizes. How do you represent body positivity, when you're excluding a certain category.