Continued Unauthorised Discovery Vitality Deduction after cancellation

I cancelled my Discovery Vitality membership in June and I have just picked up that R309 has been deducted from my salary for the past three months. This is despite the fact that this was clearly communicated that I would prefer that it's deducted from my account. This was the arrangement when I have the Vitality option active. I have called the call centre and they insist that there is a recording with me reinstating it but they could not provide it immediately even though the lady I spoke to had listened to it prior. I have been advised that I will need to wait 30 days to cancel and more money will be deducted. I do not agree with what has been done. I also did not receive any welcome pack or email confirming the reinstatement. I am beyond disappointed with this occurrence. I have tried to contact their customer service department but the lady I was put through to hung up the line.