Wesbank Cross boarder letter.

I have been sending requests for cross boarder letter for the past 3 weeks and they keep going back and forth as if they are intentionally trying to delay my travel. I am yet to receive the letter. They take over 4 days to reply to 1 email and the reply is always about asking for more info yet everything was sent. They need to assign these to people and notify a client of who the person is, instead of dealing with an automatic emailing service. I urgently need this letter and running out of time.