Network error but it is a Discovery error

Discovery, this is the second time in a month I am experiencing the same network error issue when trying to login to my banking app. Network error but it is NOT- it's a Discovery error. When trying to login, it continuously says "you might be experiencing a network error". NO network error on my side. I logged into my app this morning and all was fine. This started late afternoon. Before you come with your did you login via Wi-Fi or data stories, I used ALL avenues. Mtn data. Telkom data. Vodacom data. I used 2 different Wi-Fi's at home and work and nothing seems to work. The most disturbing part is that when I call customer service I am unable to speak to a consultant as I am sent an in-app authentication notification that I CANNOT authorize as I CANNOT login to my account. This is the third time this year I have experienced this issue. Please don't respond with the same scripted message you send to all customers complaining about this same issue. Please resolve it ASAP. It is NOT my data or Wi-Fi. This is a discovery issue.