Unacceptable delays in the call centre

For 4 days running now I am trying to get mobile banking support. Call center holding time at each attempt has exceeded 8min before I put down, all at my expense, from my cellphone. Email support queries get answered next day, and then with the standard bs: ensure you're on the latest app version, check this, check that, restart your phone.

My mobile banking worked just fine, and then something changed. Now I don't get my verification requests anymore on my phone, so I can't make payments. The Call Centre, the one time I did get through to it, told me I have to use mobile connectivity, not WiFi. Ridiculous, but even so it didn't resolve the issue.

Surely a bank the size of ABSA, with all its profits and resources, should be able to ramp up its call centre capacity at times such as this where we are stuck at home?