Unresponsive Support

I cancelled my Afrihost managed ADSL line in February and proceeded to cancel the phone line with Telkom. Afrihost stopped billing, but Telkom advised (albeit a month later...) that they cannot cancel the phone line rental because Afrihost haven't \released\" it. I logged a support request (online) with Afrihost, followed up (via email and online portal) and phoned - it's been over a week and had no response. On the phone follow-up, the support person said that department is busy... (implying it's acceptable to go over a week without response and/or resolution). All the while I have to keep paying Telkom for a phone line I don't want/use. I used to consider Afrihost an excellent company, but lately I've noticed they very poor in terms of their support and steer people well clear of them."