Bad service

I called your customer care department to enquirer about my data that has run out in a space of 5seconds , not only did I not get a proper respond , I was made to seem like I’m crazy .. I explained that I had spoken to 2 other people and advised the agent what I was told prior but he figured that he wouldn’t do what I was asking because I used my data and I know on what I used it on , after explaining to him that all my data is off and I won’t even get a refund from you guys , I just want to understand so I can stop whatever it is , so that I could buy data again.. he then proceeded to tell me the system hadn’t updated, so I asked him why he is acting in a manner where I seem like a crazy person calling and explaining what happened, cause if I knew what had happened I wouldn’t be calling. He then told me I used a FB application and amazon, I told him I don’t have those applications on my phone and he said then I’m lying about having an iPhone, I deactivated my Facebook account a year ago I would never download or go into the application, I just want to understand what happened to my data so the issue can be solved and I can continue to purchase data without having to waste my money, data is already expensive, I can not just purchase it over n over without using it . He didn’t even want to escalate my matter to the billing department after I told him the guys from the support department asked that customer care please do that. I don’t want a refund or whatever I want an explanation so that I can freely purchase data and go about my business. Is that so hard to get such a service from MTN. I’m thoroughly disappointed and very upset