MTN data services

I received a response on the 17th Nov and that someone will call me back, to date no one has and I am still experiencing problems with my data contract. I am really angry that the services rendered is not up to standard. I contacted autopage call centre yesterday and the agent advised that I still had data available, yet when I try to connect to my device it reads that the data has been depleted when I connect to my handset. I was also informed that my mtnchoice 5G contract only has night express data. I would like an enquiry into where my 5G of data is being used up 2 weeks after data is renewed. I am getting tired of taking steps to get things resolved to no avail from your side.