Telkom charging me monthly fee after contract expired and cancelled.

<p>My two year contract with Telkom expired and i went to a store and cancelled the contract. However, i keep receiving invoice of monthly service fee even after i had cancelled the contract ( cancelled on the 18th April 2017 and charged service fee for 1 May-30 May 2017). i received a call from one of their consultants yesterday and i could not talk as i was driving, today i contacted Telkom and</p> <p>Tiisetso Lekgoathi told me that the "back office" tried to call me, and i should wait for them to call, i asked her for the cancellation office number so that i can return the call as i do not want to be charged monthly for service i am not receiving even after i had cancelled my contract on paper and told they can only cancel my contract after calling me. I do not have any intension of using the number so i would like to call the cancellation office myself for them to do the cancellation as they do not believe my written, signed completed cancellation form submitted at the store.</p> <p> </p> <p> </p>