Unhappy client.

Service is pathetic. I have a bit order that was suppose to go of on 1 Feb 2022 and I made sure that there was money in the account only for the debit order to be declined for insufficient funds. The contacted fnb only to be told that there was fees in the back ground that did not go of and yet it is not reflecting on my account. I tried to send a complaint only to receive a message that the mail box is unattended and I should use the app. When I try to use the app it keeps saying site not available please try again later then I have to retype everything just to receive same message. A bank with the reputation like FNB should have a open and honest approach and it should not be so difficult to raise a complaint.