Pick n pay clothing sizes are off!

I understand you don’t return underwear it’s common practice but the issue comes when your sizes are just not normal. I went to pick & pay clothing in Rivonia Village to buy underwear. I bought a 3 pack of large underwear but their large was not the normal size Large, it was XL even XXL. Immediately after realizing that their sizes are off i went back to the store to try negotiate but i knew already what the feedback would be. So now i have underwear that i can’t return and have no money to buy more underwear. Not happy with your size classification and as a 1st time buyer my experience has been poor. It was my first time attempting pick n pay clothing and it’s sad to say my experience was disappointing.