I was treated poorly at Mr Price

I went to Mr Price yesterday morning to purchase a few items and post purchase decided I should return one, which I did less than 30 minutes after making my purchase. The refund process was one I was not fami**** with as I had to provide the cashier with my debit card and enter my pin, I simply asked the cashier how this process works as I had not encountered it before. She said it will refund. When I checked my phone the money had not refunded so I asked when it would reflect, she already started serving another customer and asked me to get out of the way to which I responded that she was not done with me as I still had concerns about when my money will reflect. She kept telling me it will and that I need to move so she can serve another customer. That kind of treatment is really degrading, I was not undermining her skills set, i just needed correct information as till today it has not reflected in y account. I called Head office and was sent from pillar to post and advised a regional manager would contact me after 72 hours. I really just need answers and to know how this system works so I can get my refund and never to go Mr Price again.