bad service and attitude

I have been calling MTN regarding my price plan for the past 3 weeks. I've been receiving smses and minutes but not data. I called in on 27-06-2015 and I spoke to a lady who identified herself Vuvu and she was disturbingly rude on the phone. She would not let me speak and whenever given the chance to speak she laughed at what I said. I requested to speak to a manager, she put me on mute and 15 minutes later she told me there are no managers available. I insisted on speaking to a manager because I was not going to speak to someone who kept interrupting me while I spoke. She put me on mute once again after notifying me that she would put me through to a supervisor then minutes later she told me there are no supervisors available. at this point I was very angry, she then put me on mute once again then got a guy by the name of Lusinio to speak to me. Lusinio was very calm and collected and kept advising me that my problem would be solved but also advised me that it was escalated but it has not gone through yet due to the strike. what I fail to understand is why it has not gone through when I have called more than three times and why MTN has not notified their customers of this.