FRUSTRATED! TERRIBLE APP AND SERVICE!!!

I am unable to access order history, under the buy tab, in the vodapay app. Currently running version 3.4.0 I've Uninstalled and reinstalled the app 4 times, issue persists I even left a review on the play store ratings. I am using Huawei app gallery, I even loaded it using Google play store I gspace, same error in that app. When selecting order history the error that comes up is, "Oops... t.Findlastindex is not a function" with a big X This has been the same error for two weeks now. This is the 4th time I'm contacting Vodacom to get assistance and resolution, with nothing to date and still the same error. Made sure phone was rebooted and phone software was even up to date Still no success. Called the contact center they cannot assist they told me to use the bot and navigate to speak to a human. Spoke to one who didn't bother getting back to me, spoke to another who told me to uninstall the app and give it time, I mean how many reinstallations should I do? I was then told to uninstall the app on my phone and borrow someone else's device and install it on there. Seriously? I've been accessing this feature on the app all along and now for the past two weeks, niks nada nothing!!!?????