Complete incompetence from Telkom and staff

I am writing this on behalf of my father, who has settled his Telkom bill in November but Telkom is still billing this account till today. A woman by the name of Neevasha who from Telkom was contacted and the only response that was given is "My sincere apologies for the misunderstanding, contact 10210" This is of no use as they give the run-around and do not help at all. Emails of proof showing that the bill was paid and cancelled has been sent to this woman and the response as above. The account was continuously billed and now no one can help. My father is a pensioner and cannot afford this amount. Attempts were made to contact Neevasha but to no avail, she only responded now recently stating the above. It is unacceptable. My father cannot be driving up and down for Telkom's incompetence. We will not be paying for this accumulated amount as the account was supposed to be closed, it is not our problem. I expect this to be solved ASAP. How can you treat elderly people like this. Have you no shame