Vodacome's self service upgrade process pathetic

Trying to upgrade my contract only but vodacom's app is the worst. While browsing through possible deals I were taken to the start page over and over and had to choose the number I want to upgrade for multiple times.....and every time I need to fill in a OTP again. It like you have no idea how to keep track of a session. Finally getting tired of getting NOWHERE. Finally swapped over to my laptop to see if the website works better than the app. So I could finally choose my new contract. But now I am sitting here waiting for the final confirmation screen....already waiting for longer than ten minutes.... staring at the little timer....