First National Bank Broken App

I am applying for new accommodation and have been trying to access my last 3 months bank statement as this is a requirement from the landlord, however the app just states that 'there are no items to display'. I've spoken to 4 different service advisor who have all pretty much told me that there's nothing to do but wait for the issue to be fixed. How long must a loyal customer wait for something as simple as a bank statement? I can't count on two hands how many times their app has given me some or other error and left me high and dry and I'm shocked at the fact that arguably our country's biggest bank cannot seem to develop and maintain a banking app. I could let it slide in the past, but in this case, the inability to access my documents may have cost me my accommodation for the end of this month. 'Sorry for the inconvenience' does not cut it when their incompetence has very real-world implications. Sorely disappointed.