Rain is a big ****

Beginning of March I paid R124 as part of their so called part pay on their 5g R499 account, I was promised I would continue enjoying internet connection for as long as I pay the outstanding amount before my next payment date. To my utter shock, my internet was stopped after a week. I was livid and I decided to stop paying the outstanding R375 because they cut me off prematurely. End of of March my outstanding balance was around R870, come end of April the balance jumped to over R1300! My internet connection has been stopped since early March, now what the hell is going on?! I'm not gonna pay these ****s a cent till they sort this mess.