kulula worst client service

As a regular traveler, at least twice a month between Cpt and Jhb I had an incident where Kulula's website where I normaly book my flights freezes and as I was in a hurry to book a flight I was force to call and book a flight. The lady told me that there is a R100 service charge. As I told here but the website freeze, she made it clearly that theres nothing wrong with it. I told her that I already refresh and restart my PC she still said theres nothing wrong with it. I hang up and gone onto another airlines webside and booked a flight with no problems. Yes its only R100 but its called client service, like a previously mentioned I travel alot due to work and this is not the way you treat a loyal customar. Anyway I will never fly Kulula again and will ensure no one in our company do.