I hate what you did to me

I bought R30 airtime on Saturday but while trying to make a call, they said I dont have money, I then buy onother R30 still I couldn't make any call, yesterday I bought onother R30 problem persists while I call the call centre they cut me several times until I get through, Ntokozo told me that they had network problem, but she will help me, after sometimes I call again Zinhle told me that I don't have airtime because I made call for R128 then R28 that was left the Internet uses them, I never been in Internet, I don't have even whasapp , , Iam angry and lost at the same time, how can I billed of the calls I didn't make.<br> You make me sick, I hate your network, I hate everything about MTN