Money being taken from my account ********ly

I cancelled my service which was stopped on March 16th and all confirmed by Telkom. <br> Since cancellation I was charged for a full month at the end of March and called Telkom to be told yes I was due for a refund and they lodged this and gave me a reference number. (***5) I then hoped someone would deal with this. However today a further month has been taken from my bank account despite being told that they owed me money and not having had their service for over a month and a half. When I call I am put on hold for so long that I have to hang up.. Please Telkom stop taking money you are not owed and refund what you have taken.