Just fed up

I app**** for a new service after moving. Service was installed and everything was great. On the 12th day of service Telkom disconnected my service and told me I had cancelled my service! Which I had not! Why would I cancel a 12 day old service! I’m so furious! The debited my account last month for R400 and this month they plan to debit my account for R900 for the router WHICH I CANNOT use as they cancelled my service ! And of course - no one can help me! I’m so fed up with the useless customer service