insulting - Consumer Complaint for PEP STORES

I purchase a bag a small 1 and packed my iterms the next thing I was told that the bag is too small for my iterms. I was told to buy another bag and the manager by the name of nompumelelo Nkele from pep cosmo city shopping centre told the cashiers not to help me and shetook my bag she said she's going to take photo and when she come back the bag was torn. I tried to take a photo how it was torn and she refused and start to insult when I ask her why is she swearing at me she told me that my bag was open