Very Poor customer service

Good day. Im very dissapointed with studio 88 store in goldfields mall. The management and regional manager handled my issue was handled.. They had a special on levi jeans of which i bought both of them but when i got home i noticed that the other jean was not the right size i took it back for exchange.,so one of the sales representative asked me to leave it he will make a plan only if i come the following week. The following week when i came for my collection it was not there, but he promised to come friday because they can't find a size for me but he wi make the arrangement with the regional manager hence he is coming on friday.. well i went back the very friday after Easter i found him and i told him my problem.. he was willing to help me busy on the computer and i was busy mingling with one of the guys to my surprise the regional manager spoke harsh words to me saying i have attitude and i asked what did he hear me say because im not talkong to me it reached to apoint where we exchanged words and he told me straight to my face that he doesn't care who am i or where im from and threw me with money i bought with to my face... im really dissatisfied with the matter handled or is because of black management or is it that they know more than their customers or what but really it is a poor customer service that i got.