Why have these people changed my ID Number??

I have now had 2 different dealings with Standard Bank Card Division. The first was when I couldn't access my Credit Card statement as my ID number password was incorrect!! It was OK at the end of May but not now!!! On contacting them I was told that they have my ID Number as something that begins with PP followed by numbers and letters!! (How can that happen?) They then have the nerve to say they can't change it back without me going to a branch with my ID book!! Well, they changed it to some stupid number when I wasn't even in the country so they can change it back. Then, I was contacted by phone by someone asking if I wanted to increase my credit card limit! On confirming my ID number, she was adamant that I had it wrong as it didn't tally with what she had (and it wasn't a \number "beginning with PP!!). Now my cousin has told me that he cannot transfer funds to me from overseas as it is rejected!!! I do NOT want a token email saying my problem is being looked into and no further contact. I DEMAND a phone call from someone who knows what they are doing AS SOON AS POSSIBLE as I need the money coming from overseas for a business opportunity and if I miss it I will sue!!"""