Poor service lack of communication

I am very unhappy with incompetence of call centre gents my services was disconnected because I had outstanding amount of 145.00 although no message on screen or email was sent.because I paid lum sum in account I was not aware of the R145.00 that was outstanding then I paid R220 services got connected for 3 to 4 days now my services is off again with outstanding amount of R249.their whatsapp services sent me shocking transaction statement of additional fees of which I don't know of sent email on 12/9 for explanation again today stil no response I took the lowest subscription due to unemployment but now it looks like I am back to normal services without my consent.i need my account fixed