DISGUSTING SERVICE AT MTN

I went to MTN Kolonnade to Rica the sim card, I bought at PEP and I was told they are unable to Rica it I should go to PEP. I decided to buy a new one from them, He tried to Rica it but He said He cannot as I have more than 10 contacts under my profile. I asked If He can provide me with those contact, He said He cannot. I then asked what should I do as I have to use the sim card for UNISA exams on Wednesday and He had not clue. I requested the Rica number and He provided. I asked if the number would not charge from my airtime, He said if I am not using MTN it will charge. I called the number because while I was still at the mall and I was told to go back as the store was supposed to assist me. I went back to the same and I briefed Him on what I was told, He said I should call the Rica number. I called the number and they requested to talk to the Guy and He was told what to do. After a long wait, He told me that He cannot send the email to Rica. He then send me to Menlyn MTN, I asked if there is a guarantee that they will help me there. He said He does not know, I requested a contact number thinking at least the guy would have a courtesy to call the Menlyn branch , little did I know that He wont . I have left the shop without assistance and I am so disappointed with MTN service as I am writing the UNISA exams on Wednesday and that was a reason for me to buy the sim card and I even explained to the Guy and He seemed not to care at all.