Account after 3 months still not cancelled

Since 16th of February I have been trying to cancel my Telkom subscription, landline and internet. First in the shop in Ballito, later in March and April I called 3 times. Every time I was promised it would be organised by the first of May. But now again I received an invoice which will be deducted from my current account on the 4th of June 2015. I moved to Netherlands, so had to cancel all, which I have been trying for 3 months now. I tried to call this week, but it costs a fortune form the Netherlands to South Africa, and waiting takes ages. I have been trying to email to [Email Removed] but get no responses, not even a confirmation of receipt of my emails.