No assistance from FNB on a deceased's estate case, Ref number CN***

No assistance from FNB on a deceased's estate case, Ref number CN***. My mother-in-law passed away in February and since then, me and my husband who is the appointed executor have tried with no success to help my father-in-law to get her estate payed out. Required documents submitted from beginning but there's always issues although information was populated inside the bank under the guidance and the watch of the FNB staff. Branch revisited multiple times already but still no success. November 11th we escalated the matter to the 3 Team Leaders in the department expecting a response within 7 days but there's still none, except autoresponse. Escalation to management promises a 48-hour response, but with the poor service received in the past 9 months, I have no energy left in me. FNB, how can you help us?