Terrible MTN customer service!!

Where do I begin? I guess I'll start with something good and then the bad.

I have been using MTN for over a year now and have been happy using it. In the 3 months I have used over 150gb of data and a lot of airtime, so I was really happy and didn't even consider any other networks.

A while ago I had a data issue where my airtime was used instead of my data and MTN managed to sort it out without issues.

This morning 14/11/2018 at 0:19, I purchased 1gb of data and switched my data on(which I only do 5min after loading the data bundle). After 1minute my cellphone notifies me that I'm being charged out of bundle and that my data bundle has been depleted, which is impossible for 1gb to be used in 1min. I called customer care at around 0:30 and told them the issue. First I was told to call back because there was something wrong with their systems. I called back 5 minutes later and someone else told me that they are having issues with their midnight data bundles not connecting and that I should call back after 6am so that their systems can fully update and to get a refund for the usage.

Called back about 6am and was told to call back in 5 minutes. Called back and this time I was told that I was charged before 12am. I Never switch my data on if I don't have a data bundle! The only time I switch my data on is 5 to 10min after I load a data bundle. The consultant transferred me to the technical department where I was told that it's a customer care issue and was transferred back to customer care. I have called customer care 11 times today just to sort out this issue and it has not been sorted! I am extremely disappointed at the level of service I've gotten today from customer care and after being told the first time that it's a problem with the system, I get transferred around or told to call back because they don't want to deal with the issue!!