Telkom not assisting

Today is the 4th request regarding my Telkom invoice. I cancelled the ADSL line in February due to lightning strike. I was told that the ADSL do not get repaired and there is NO Fibre available in our area as yet. I was advise to get a wireless network which I did. The response speed was extremely slow. The ADSL line was suspended middle of March. I did not get a statement at the end of March and at the end of April there was arrears interest charged. I queried the amount and got no feedback. Same in May and June. It is now July and still not feedback. I received another invoice with even more arrears interest charged. I need verification of the outstanding amount as I did not get full service in March. How do I get Telkom to assist