Vodacom here I come

I wanted to take out another contract with MTN and told the guy (Linda) at Stoneridge MTN that it was fairly urgent. I chose the iPhone SE R200 per month contract and went through all the biometrics etc. Linda then tells me I have to pay R113 for a SIM card and cannot get it at the store??? I said the package is a contract and by virtue of this the SIM should be included- the marketing material doesn't say 'SIM not included. All I got was 'eish'. Spoke to the manager who spun me some ******* story about Vodacom complaining that MTN didn't charge for SIM cards so now they had to do this. Anyway. I apply and I am told it will take 2-24 hours. The next Morning I receive two phone calls from different numbers. When I try call back, the first number says it doesn't exist. The second number says I must pay R2.80 per minute. So I don't bother calling back. I eventually phone Linda 24 hours after taking the contract out only to be rudely told by him that he tried to call. He didn't leave a message so I didn't know it was him- plus I told him it was urgent so you CALL YOUR CUSTOMER BACK, He then proceeds to tell me I am blacklisted so the contract was declined. I lost the plot as I don't have any credit. Actually what he was trying to say is that I don't have a credit rating. I told him I had been a customer of MTN for 15 years and currently pay R1700 every month on time every time to them and they won't allow me to take out another R200 contract???? Linda was extremely rude and pathetic - he doesn't know what he is doing and I will be moving my contracts to Vodacom if I cannot even do further business with MTN