FNB - Not there for clients during COVID19 crises!!!

I am so disapointed with FNB. I have been with them for years but now when I really need them they are unavailable!! The charged me R1240.00 for an overdraft I never authorised. If they just contacted me or read my e-mail they would know I have made arrangements with my debit order suppliers. I just cannot get hold of them either by phone (spent a whole morning holding on!) by e-mail (have sent a few e-mails...(no reply not even an acknowledgement!) even their mobile app is also unavailable! Very poor FNB, just when we need you most during this crises!!