TERRIBLE SERVICE FROM STANDARD BANK TRUST

Standard Bank has continuously Failed to give feedback on my late uncle's estate. My uncle passed away in June 2021. I followed all the procedures in reporting his passing. He had a Will with Standard Bank, which meant they are the executors of the estate. A lady by the name of Kamogelo Mmitshane asked me to send all the necessary certified documents, which I did around August/September 2021. The said documents were sent via Standard Bank courier from their MALL OF THE SOUTH BRANCH. On the 4th October I sent Ms Mmitshane an email asking about progress on the matter. She then told me she had resigned from Standard Bank and gave me the email address to send my query. Which I did. I then received an email saying Danie Du Toit would be in touch with me with the feedback. Today is the 30th of March 2022. I'm still waiting for that feedback. Today I then decided to call the Deceased Estate Department and they told me my late uncle's estate has not been registered and there is no account on their side. Nor have they received the documents that were supposed to be couriered. My question is, is my late uncle's estate so INSIGNIFICANT to Standard Bank that it is treated with so much DISRESPECT and CARELESSNESS? To say I'm disappointed and disheartened by Standard Bank's service is a complete understatement.