Impossible to Cancel Lines

I have been on a wild goose chase trying to get a number of unused business lines cancelled on our Telkom account. I have been in store and was given an email address to which I should forward my cancellation request. I emailed Telkom SMBS Retention Centre on the 3rd of June 2015, immediately got an auto-response and forwarded all relevant documentation. To date I have had no feedback, the number I requested to cancel are still on my bill and phoning 10217 is out of the question as I have held on the phone for almost 3 hours with no answer.<br> <br> If this problem is not resolved we will cease payment and hand the case over to our lawyers as this is beyond ridiculous.