Poor Service from Mondo for an MTN Upgrade

I received a call which was supposed to be MTN (mislead on the phone) but from Mondo as my contract was due for an upgrade. 2 weeks went passed an on enquiry to MTN I learned that this was outsourced to Mondo - also for Telkom and Vodacom. I then called their call centre whereby they gave me a lousy execuse that they have a backlog due to Black Friday specials. Today i did another follow up and I was told that MTN dont have any stock and they did follow up but I received no communication from them. Why does MTN outsource their services to a pathetic company called Mondo if they cant provide any service. I wish to cancel my upgrade and do this directly with MTN or convert to prepaid and then change over to another service provider. Shocking service. Now everyone on leave until the 4th. I didnt know that companies such as Mondo or MTN closes during December and cant provide any services. Pathetic service will not recommend Mondo to anyone!!