Sim Swop

I wonder if anyone can assist me, i did a sim swop @ one of your telkom shops on the 25th October. I wanted a new sim as i still have a old 8ta sim card and my new phone takes a nano card. Paid the R35 for the sim swop just to find out later they gave me a micro sim card (that wont work). I went back to the shop to have it exchanged just to find out the new sim card was not active yet. They then told me i would have to come back on the 28 October as they cant do another sim swop so soon. Went back to telkom on the 28th just to be told that there is a problem with your system and my new sim is still not active. They then told me to wait another week as it would be fixed by then and my new sim would be active. I was to then go back to the shop so they can do another sim swop so i could get a nano card. As of now my new/old sim is still not active. How could a basic thing like a sim swop be such a problem. If anyone can help me please contact me......