Standard Bank fails to give me a Deposit Account after 5 months!!

I have been with Standard Bank for more than 20 years and since last year 2017 i have been trying to open Notice Deposit Account but till today i am unable to get the account. I started by doing online application which the system refused saying i should go to the branch to open the account. I went there, started at Polokwane Standard bank Square in January 2018 and was told that the system refuses to open an account and when asking what is the reason for that the lady (Jane) who was assisting me told me she does not know. I then went home in Acornhoek where they needed proof of residence, Hanies verification and other documents which i submitted to them. I went there several times to do follow-ups with no positive response .And the lady(Julia) who was assisting me in Acornhoek told me last week Friday that she tried her level best and she will no longer be able to assist me but will forward the issue to her branch Manager. After 5 months standard bank is failing to provide me with a Deposit Account. My biggest problem is that they do not give me a reason why since i am having a Current account and a Credit card with them. I am now thinking of switching to another bank.