Cancelation of service

This is probably one of the worst companies to ever deal with, my 60 year old dad has been trying to cancel his ADSL and landline with telkom as he isnt working. he tried to go in store, they couldnt assist. he tried to call them, they told him to go online and cancel his service. offcourse he has never been online, so i tried to help him online. Their website is even worse than going in store. I have the statement in front of me and its giving me an error to cancel the service. so in other words if you dont have online access, you cant cancel your service. wow. and how do they expect a pensioner to pay for this mediocre service as he is unemployed? telkom is the worst service provider i have come in contact with.