Poor Customer Service at Game Store Menlyn

I purchased a cricket bat for my son at Game store Menlyn on 22 October 2018 and it has a one year warranty. My son used the bat two times and the third time, while he was playing a match, he hit a ball and the bat broke. I took it back on 9 November 2018 and after waiting for an hour for a replacement or refund, the store manager came and told me that they could not help me because it was a physical damage. He said my son must have hit the bat against a hard surface and that's why it broke. I explained to him that the bat broke during a match, in view of the coach and other players but he insisted, arrogantly So, that he was not going to assist me, insinuating that the bat was damaged on purpose. I have never felt this disrespected!