Poor Woolworths quality and service at Bronkhorstspruit

I bought a pair of school shoes thinking Woolworths quality beats the rest...sadly disappointed went in the same day and bought a Sandle instead walkmates as the school said Sandle are accepted...i informed the cashier that I will b bringing the item back as she did wear to school but was taken of after so an hour as she was saying it's hurting her and gave her a blister that's why buying the walkmates but Wil come in to exchange or refund ..he said no problem as long as I have a receipt...when I did manage to go back after a week or more I was told nothing they can do item must be brought back the way it was sold...the shoes are still new not worn in that way..no dirt no bends nothing all looks and feels new..... disappointed and angry told the cashier u keep it I don't want it and give it to someone....!!!@ this is at the Bronkhorstspruit branch....poor service with even poor service liason,,,,,Spoke to the manager few mins bore even said I'd they have the walkmates school shoes would not hesitate to purchase,, And if possible could they order,,,,said to try at highveld mall....poor quality on the Woolworths brand.