Question obviously is if it’s internet connectivity on their side but it’s atrocious uptime for a bank of that size! 
Discussion
honestly wouldn't know - never banked with the big four/five. I assume no issues though - but it could be hackers too because it's a global outage in many places around the world.
Hard to say. Potential signal. It was south afrucan friend that pointed it out and said compared to other banks in other countries and stood out. Who knows. Maybe something to keep an eye on here and there