Worst bank ever

I opened an account with FNB a few months ago and have using it it to store funds. The account was recently closed, i was not told that it will be closed. On the 3rd of September 2020 i transferred an amount of R105.00 into the account and kept checking to see if the payment had updated. Normally this takes about 4 hours to a day to reflect. I speak from experience! On Friday the 4th of September i generated an Account confirmation document from my banking app and submitted my request to change my banking details from Capitec to FNB. My banking details have been updated yesterday (7 September) I am told that the account has been closed. Why would you allow me to generate that document and transfer funds to the account if its been closed??? My experience with FNB since opening this account has just been a headche after another. That account needs to be reopened, today still. and the funds i transferred must reflect in that banking account.