Been trying to make a payment all day, all I get is "oops, something went wrong". All very well saying use the website, doesn't really say much for the app developer if can't use it. Uninstall/cache clear etc works first time of use, but then it reappears. Judging by S21 issues (phone freezing when trying to pay - at least my Mi 10 ultra continues to work) I'd guess it is a badly configured app for Android 12