Refusing to take Damged Goods back

Bought shoes at Ackermans Chris Hani Mall on the 21st October wore them once and they broke, took them back to the store but because i didn't have a slip i was informed to bring any proof that i purchased there got my bankstatement and bank card that i had used to swipe when buying.So Saturday i went back again this time i was referred to the manager who refused to assist telling me straight without the slip he won't assist.Thou i informed him how many times i was there and given different information.He just couldnt listen, I felt badly treated as now i am seated with broken shoes that is the manufacture fault and i am losing all because i lost a slip.Ackermans service has become poor I am even willing to cancel my laybes that i have put with them for xmas clothes for my children I used to highly recommend this store as the best but now they are losing a client in me