Access Bond cancelled for something silly!

We have an Access Bond with FNB which we use to move money to and from on a regular basis for various reasons. This month (because of the pandemic and everything that's going on) we forgot to move money into our Cheque account and our debit order on the bond failed. Afterwards we just transferred a significant amount of money back into the bond.

Now they have cancelled our Access bond because of this. This is ridiculous and if this is not fixed we are going to close our bond and move all our Business and Personal accounts somewhere else.

How do you treat your customers like this during a Pandemic!