telkom billing has gone crazy

<p>I took a contract with telkom mobi last year paying a fixed amount of R 399 suddently for the past 2 months i am now billed 599 when i call the telkom landline to ask the lady said there was a mistake in the billing department coz i was "subscribed to unlimited data" which i dnt remember taking aftr shouting at her the bill came back nomally now it has gon3 back and a ladu by the name thandeka had the decency to tell me sh3 has no any other way to assist me hence iv explained the contract ive signed indicates a fixed amount of 399 she seemed clueless of her job cz all she said was i will send u your 599 bill which I WILL NoT pay for.</p> <p>i am really dissapointed with telkom</p> <p> </p>