Cannot get a Telkom service/s cancelled - documents lost

My brother cancelled his full Telkom service, fixed landline, adsl and internet ISP in April 2018, as he has emigrated back to Germany in May. However, his cancellation documents have not been processed and subsequently gone missing, yet he has been trying ever since to get hold of some competent agent via the online chat on the Telkom website, to get this issue resolved and the services cancelled with effect from 31st May 2018. I have been trying to get this cancellation issue resolved from my South African Johannesburg side, but to no avail. PLEASE can someone competent contact me on ********** 366 to get the service for (011) ********** cancelled and the account sorted and re-credited for the months of June and July 2018. I have copies emailed to me from my brother of the cancellation documents, chat history from him trying to get this resolved with Zinhle and the email correspondence. This needs to be sorted and corrected as my brother is no longer in South Africa and he would like this account sorted and paid.