My id document is not good enough

I went to Capitec Bank at Mall of the North to open a savings account and then Johannes said my id document is not good enough but I must go with him to Johannes. Then both of them said that my id documents is not good enough and that I must go to Home Affairs for a new id or I must apply for a Passport. I said to them that I do not want a Passport as I am not going out of South Africa and I told them that this is the first time that somebody told me that my id document is not good enough. I also told them that I am not going to leave it there and I will report this. They send me away again with the same words.<br> <br> <br>