data *******

i am absolutely irate , I loaded 200mb at 10;30 valid for 7 days which normally lasts me for 1 day and half as I use an iphone 7 today I didn't browse nor watch any videos and before 11 im notified that my data is almost depleted which came as a shock to me , so I called the contact center and spoke to Sandra who advised of data settings and she was not making an sense because I haven't changed any settings on my phone than she transferred call to Kgomotso from support who didn't even listen but was busy telling me to go on my settings which was not the nature of the call , now mtn has really been abusing us at south Africans because they overcharge you and when you call you are advised that you signed up for something they will change the settings , I want my data reimbursed urgently because I will not donate my r25.00 to mtn for nothing, I asked to speak to a team leader and I was deprived that right was just placed on hold for long I had to release the call, someone has to call me or I wont stop.....