Impossible to close an UCount account

I have tried to close my fathers UCount account after he suffered a stoke in Aug 2017 -the call center said it was not possible as he has to speak to a consultant, but after the stroke he cannot speak. The consultant said I had to get a doctor’s letter and bank letter that I handle his affairs, which I scanned and mailed A day later they phoned on his number and insisted to speak to him - with a letter to state that that is impossible!!!! I just cannot believe in my opinion the incompetence andlack of compassion in which Standard bank is handling this matter, phone calls and time wasted and no where further.