Screencover cancelled but debit orders kept active

<p>I was given a trial cover for my phone screen and i cancelled it before the trial period expired. i was supprised that they deducted premium. i called and was told it was their mistate that policy was activated. they deducted R19 twice(R38) but they credited my account with R33 which does not reflect on the statement as they kept deducting the same amount that included the screen cover. i am tired (sick)of calling them and just think maybe you can assist. i have two contract with them, can i cancel them? what is the correct procedure?</p>