Baby City - Cariwell Panties Ridiculous size

I want to write a review on Baby City but specifically relating to Cariwell products. I purchased the Cariwell Post Birth Support Pantie from Baby City Bloemfontein, Free State. I am a size 8, so I bought the size small. However I can't even get the panty up past my middle lower leg, the support section is too tight. This is ridiculous, only a size small child will get this panty on. Baby City doesn't want to return it or even just give me a credit because of the hygiene policy. I literally could have taken the R259 and threw it in the toilet and flushed it because this money is now wasted. I think Cariwell's size is totally incorrect or something is wrong with the panty and if anyone wants to buy this panty I will tell them to not do it accept if you can fit the panty before hand. I think at any store which has something different like this they should allow you to fit it on top your current underwear because they are damaging their own brand.