MTN Night Data not used and issues not being resolved

I have been contacting MTN call centre from the 2nd February 2019 with regards to my night data not being used on both my data contracts. I kept on getting sms's with reference numbers stating that my query has been escalated and giving me reference numbers thereafter received sms's stating that my query has been resolved. But when check my balance the same problem continues, night data not being used but 24/7 the day data is being used and depleted. This issue is on going for a month now with no solution. The data will be loaded again on the 12 of March but today the data on one sim is below 1 gig and the other sim below 7 gigs. I pay for the services but now I need to load more data cash? How does that work when I keep complaining but there has been no solution? I also went to the Chatsworth store dealt with Delene and informed her about the whole issue she also escalated reference numbers but no resolution. Then she lies and states that I did not give her both my contract numbers, and I have it on my whatsapp where I did inform her that both numbers are not using the night data. I contacted the regional manager Verinia and she has attitude and was not very helpful, she told me she will call Delene and Delene must sort this out. As a regional manager she showed attitude and gave me no assistance at all. I have had issues with this branch before and now it’s having again. Overall it’s a MTN issue that’s not getting resolved at all. I want to know why is my night data not being used and I want this problem fixed ASAP. When I previously had this problem with MTN I was given data as compensation. I would appreciate the same here on both my data sim cards and this night data not being used needs to be resolved. I have all the sms's with the escalation numbers if required.