Airtime

I am so sick of this company now. On the 5th of march i recharged with R700 worth of airtime which i was betting would last me till the following month but within four days its gone together with my 1gig data. They cant say i did not have data therefore i used out of data bundles.... I was allocated my contract airtime but still cant use it cos it tells me i do not have airtime. I have been calling since this week to get answers but all they do is reset my simcard and check if i had subscriptions( which i fo not have) i called in this morning again and gave them my reference but it is not on the sysytem. I cant use my phone anymore becos of this useless network. I want my airtime back... all of it