Standard Bank Deceased Department

My Husband passed away suddenly on 2 February last year. I have waited for 11 months for the Master of the High Court to issue me a Letter of Authority for the vechile my husband bought for me, financed on his name. A month ago I forwarded all the documents to Standard Band Deceased Department. I received an automated reply with a reference number. I have since then emailed them twice as to the progress. I would like to settle the outstanding amount on the vechile. This is way pathetic. I have every month since the passing of my Husband paid the installments, more than the required amount. I am fed up!!!