No Assistance Available

I am trying to register for SELF service and receive an error saying that my smartcard is linked to another profile. I have only registered once. Last night I contacted the call centre and they were unable to help and I was told that the people on live chat were the only people able to help me. That was at about 8pm and they were not available so I left a message for them to contact me. I stayed online for about an hour and a half waiting to see whether someone would come online to chat but to no avail. This morning I called the contact centre and got through to Brandon. I explained my problem and mentioned that I was not able to link my customer number for internet banking as the reference number (customer number) is incorrect even though it appears on my receipt/dstv sms, etc. I then told him that live chat were not available and he said he would go and check ... he left me hanging on and on and on ...... pretty useless service and all I want to do is link up so that I can do things myself.