Can you be without your business sim for 11 days??

Good day<br> <br> I would like to lodge a complaint for uacceptable service from One2One and MTN. One2One is a service provider for MTN. I had requested to cancel my top up airtime deal with One2One and was told it will be cancelled and my sim will be put back to prepaid, i was advised i must call them back when i notice my sim doesn't have service.<br> <br> i called them back when it was out of service on the 20th October and they asked for for my sim card number which i provided and was told it will take 24 hours to be put back to prepaid. I was called back by them on the the 21st saying i should get a new sim card i did and i gave them the new sim card number as mine was apparently too old i was told it will work in in 24 hours. On the 22nd they told me that my query is too comlicated and MTN will take 5 working days to sort it out it's not their fault as MTN is the one who does it.<br> <br> I cannot believe in this day age you must wait for 2 weeks to sort out a simple sim card to work to make matters worse we use this sim for business and we are loosing customers due to this we cannot have it.<br> <br> the number in question with MTN is ***.<br> I can be reached on ***<br> Thank you