Refund

I bought school shoes however same is not needed so I went to Ackermans for a refund however they refuse to refund my money, I have a proof of purchase slip but I misplaced the actual till slip. I them requested to speak to the manager who's name is Tokozani, I ask his Surname he refused to provide same. His manner in handling my query was pathetic. For a manager he does not know the meaning of customer service. I do not wish to exchange the item, I jst want my money back I will never buy anything at ackermans ever