Jet discriminating against bigger sized people

Went to 2 different stores in the area that I stay and both stopped selling clothes for bigger sizes (Donatella range). They now only sell up to size 40 and Im a size 44. The only thing I can buy from them is Bras and shoes. This is discriminating against bigger sized people. There is a lot of ppl that complained about the same thing. Why have an account and not being able to use it coz they do not cater for your size. This is the Jet store in Campus square in Aucklandpark and Protea Centre in Brixton JHB.