Old Mutual taking my money after cancellation of policy

On the 3rd of march went into old mutual Mabopane central city branch to cancel policies i had with them, the lady that was assisting me said they were cancelled when i left the branch .The very same month i realised old mutual had deducted money from my salary i called them they told me that both policies were still active and not cancelled. The person who assisted me to cancel the old mutual life policy told me i will not get refund for the premiums paid for that month as it was cancelled after premiums had been paid by my employer ok i understood, he then transferred me to old mutual group to cancel the policy spoke to the guy who also confirmed that the policy was not cancelled at the branch i then asked him to cancel it he confirmed that he cancelled it,4 months later Old mutual is still deducting money from my salary i called in today and I was told i did not cancel the policy. Why is old mutual forcing this policy on me i cancelled that policy 4 months ago i don’t want it anymore but your still taking my money ,and why is your consultant telling me i will not get my money back whereas im not the one who didnt do their job and cancelled as a customer requested. You must remember i went into the branch i even called to cancel old mutual im not at fault ur *********** personnel who failed to execute a customers request is the one at fault.