Terrible customer service experience

I am extremely disappointed with the level of customer service that I received on the phone of the 8th of January 2019. I took and online application for a contract with MTN that was available for the black Friday specials, the application process was lovely and everything went smoothly (26/11/2018) , the last step was to wait for my Sim card to be delivered, which I was informed would take between 3 days and 2 weeks... 2weeks passed and still no sim. TODAY I phoned multiple times to find out why it wasn't delivered and I have been put through to multiple departments and have spoken to 9 different consultants... Alot of which have put the phone down on me because they wanted to transfer me to yet another department and I asked them not to transfer me again. Nobody has helped me in any way and I am quite irratated with the amount of time I have wasted trying to get help. I have waited 27 days already for the sim. I have used this service provider for 5 years now and I have never had any reason to complain about the service but I must say this is so disappointing.