Telkom Optic Fibre account

We were switched from the old copper wire telephone service to optic fibre. We never signed for it. We were on the Fixed voice service and were told that we will actually pay less on the optic fibre system. Our 1st-month account came for R 533.30 which included internet which we did not receive and did not want. My husband went to Telkom at Mall@Reds. after he spend 1 and a half hours there they told him that the account was fixed. Came this month account for R 811.80 still with the internet charges. How can we get Telkom to fix our account?