Bad service from the store manager of Edgar's in Jabulani mall soweto

I bought the watch on the 12/02/2019 at Edgar's store in jabulani mall.I I discover that the watch was faulty because it was delaying the time back and i returned the watch back on the 16/02/2019 wanted to do the exchange and sales assistance by the name of Sipho said I must go buy a new battery it is the cause why the watch is delaying the time back. I did that and the watch was still doing the same thing,because of work issues I then did not have time to go in the store again. Sabelo the store manager refused to do the exchange for me according my till slip it says "any merchandise deemed to have a quality defect will be refunded or exchanged within a 6 month period if the merchandise was used for its intended purpose,cared for according to the wash l/care instruction label and returned with the original proof of purchase" I very disrespeted the way he was talking to me in front of his staff membets and he was full of attitude ,the service was not professional I will not shop at Edgar's again in my whole life especially at jabulami mall