Game stores Gateway: they lack customer service

I've never felt a need to write a bad review about a business before, however the manager at Game Store Gateway (Patrick Abraham) showed a lack of customer service towards me, his inability to even Apologize has made me choose to write this review. We were using payjustnow to purchase 2 items. The items we had were above the credit amount we had on payjustnow. We asked Hlengiwe the cashier if we can make the purchase and pay the balance cash. Hlengiwe said yes we can. Once the process with payjustnow was complete and it was time to pay the balance cash, Tina a supervisor tells us we can't pay off the balance. I further ask which is the best way to resolve this as we would like our purchased items. She calls Patrick who doesn't bother to greet and doesn't bother to Apologize about the miscommunication... he tells us there is nothing he can do. We then explain that hlengiwe advised we can proceed and pay off the balance cash, he basically denies that she could've advised such (calling us ****s) and hlengiwe continues to lie and say she did not say such. I've never been called a **** in my life. I had a 5 month baby with me and had to really compose myself because how dare they imply I am lying!!!! They seriously need some type of skilling because they lacked empathy which plays a huge role in customer services. I have a video of this and will share it on Tik Tok to my followers who also moms if I do not get a call from Game stores.