FNB not assisting with deceased estate balances!

My mom was a private banking client with FNB for 20years+, but it seems like when their customers pass away then FNB stops servicing their accounts.

We have been struggling with the deceased estate department of FNB for over a month now to get the final balances OF ALL ACCOUNTS for my mother.

After the master of the high courts system was returned to normal the executor struggled 2 weeks to get balances from FNB (a request which had been submitted in the first week of September before the system of the master of the high court went down), and then FNB only confirm the cheque account balance, they did not confirm the credit card or personal loan balance/(s).

Now once again the executor of my mom's estate has been following up with FNB for two weeks to no avail to get these balances confirmed!! It seems as though FNB would not like to recover these outstanding balances??

FNB is holding up the finalization of the estate account, since working from home FNB's personnel seem to not be working at all because they do not answer phones or emails!