Rude Aggressive attitude and bad service

Absolutely disgusted and disappointed with the lack of customer service and support at woodlands mall. On the 1st of June 2019 I bought a pair of hitec tekkies for my son. After a week of wearing the tekkies, the front tip of the left shoe started to peel. I took the tekkie back as it was under 6 month guarantee. After filling in the paperwork, I was informed I could come in the following day to either be refunded or receive a voucher or exchange the tekkie for another. The following day was a Monday. Fournately I was able to go to tekkie town at woodlands mall at about 3:30 in the afternoon after work. I approached the lady at the store in a friendly manner to find out about whether a decision was made about my so s shoes, and not being able to reach them telephonically. after which she became rude and aggressive. She immediately began arguing that she did in fact call me to notify me and demanded to know whether I would be exchanging the shoes or taking a refund. At which point I askedmy son to check if he would like to exchange for another tekkie he liked in the store. Whilst my son browsed around checking other tekkies with me helping, he found a red converse tekkie that he liked. I enquired about the size and the very same lady said they do not have a size 3 and after searching by myself I found a size 3 although in a different color. At which point the lady angrily approached me and demanded that I take a refund and leave the store to purchase a tekkie elsewhere. Neither of the sale staff at this store were of any help trying to find a replacement tekkie. Whilst my son and I and his friend were present at the store we never received any help selecting another tekkie. However, new buyers entering the store were greeted with warm smiles and helpful assistance. My son and I were clearly made to feel that because we returned a tekkie which was falling apart after a week of wear therefore we certainly were not considered valued customers. The fact that the tekkies was inferior quality was never the fault of the sales team, and during the process of returning the pair of tekkies I was not rude or disrespectful to the sales staff. However, I cannot understand how I as a customer can be treated with such poor and shoddy service. It’s quite disgusting and disturbing. I have decided never to purchase another item from tekkie town at woodlands mall. The entire experience has left a negative impact on me as a customer.