Discovery ignored my urgent request

Case ***3. I have been struggling to get a confirmation of account document stamped for work. I phoned two days ago explaining the urgency. Then again yesterday and again today. How difficult is it to print, stamp and send a document back? They promised to attend to it but did not. Discovery bank ignores its customers. The banker who answered the phone today, sounded like he does not want to be at work and disconnected the call. So what should I do? I think its best to go to Capitec bank and get a document. At least HR wont have a challenge with that. So much for good service and innovative banking. Seems everything Discovery is going for a loop. Time for change it seems