Makro Credit authentication

Makro Credit card app. Makro changed the authentication method to include a Selfie. Since then I cannot logon, even after a successful Selfie was uploaded. It says 'too many liveliness attempts'. I called, I emailed the call centre, but nobody seems to have an idea of how to assist me, saying this morning they will get advise, then I was holding, then we were cut off. Yesterday the agent who answered has no idea and said Makro seem to be down in Centurion. And nobody responds to my email request. I want to manage my account on the App, and pay via the App. Seems to me the only way to get a response is unfortunately to post it here.