Only 2 staff members working so 48 hour wait turns into 4 days and counting

On 14 December I app**** for one of the 12 days of Christmas deals at Telkom Springs mall. After waiting in the que for an hour and a half I was informed that as my telephone number was used more than 7 times the past few days my documentation would have to be sent to credit check. They were unable to explain for exactly what my number was used and this made me nervous as my only credit is a Donna account that has a R0 balance and a home loan that is paid up to date. The lady told me this could take 48 hours to be resolved so on the latest I would receive a call on Monday. On Tuesday 19 December I had still not heard anything so once again I went into the shop . By now I was very worried that somebody was using my details as I did not qualify immediately for a R149 phone contract. After standing in the que again a different staff member assisted me. She told me that the lady that helped me on 14 December should assist me again as she would have to phone them. When going back to this lady she told me my papers have not been processed yet as there is a back lock as there are only 2 people working with this. After I told her that her colleague said she should phone to follow up she first referred to her before making the call. What should be a ten minute wait after the call is closer to20 min . Is this to be an unending wait again? After I showed her the errors that she captured on my documentation on 14 December and she just said she"all fix them later I should have for seen the hassle I would have.