Third Request to cancel ADSL

Good day <br> <br> I phone TELKOM on many occasions in Jan and Feb to cancel the ADSL service on my line *** and to retain only phone voice service.<br> On 02 Feb 2016 i filled the required cancellation forms in with my ID and final payment. - had no reply i sent the same forms again on 018. Feb 2016 and still no reply , now they have billed me again once more <br> what can i do to get them to stop the ADSL and only have a residential line running for phone voice usage <br> Thanks<br> Rajan Padiachi<br> *** <br> i have all my e mails as proof to telkom