MTN - By far the WORST network provider

I am extremely disappointed with the service from MTN. I have been a loyal customer for 13 years, and today has honestly been a very unprofessional experience. I have been trying to get an additional contract added for the last 3 hours, I spoke to a consultant for over 30 minutes, only for her to tell me the system is slow and she call back in 2 mins… it has been 3 hours and no call back. I then called MTN 3 times, to be pushed around and the lines were also very unclear, eventually ended up at an entirely different department to be told my application was cancelled due to a system error. Why did no one contact me back ? this morning I called 135 because I have not received a call from anyone regarding my new request I did online for a new contract. Long story short, yesterday I was told I have approximately 9k credit, this morning the agent says I have R0.00 ???? I then get transferred to retentions where that agent told me I do have credit of approximately 9k and she doesn’t understand why I was told I don’t. Is this how MTN customers are treated ? There is no customer service, no urgency to assist customers and this has really made me consider switching to a different network