fed up with AF-bob

i sent a cancellation letter on 2018-11-14 cancelling my funeral policy because i did not want this policy in the fist place. the agent told me that it is just a pre-application just to find out it he went through with the application. I called the call center and asked how to cancel and was told to send a a signed cancellation letter which i did on above date. To this day these people are still deducting the premium from my salary. I sent them numerous mails to which they don't respond. i am very disappointed in avbob.. i want all my premiums paid after the date of cancellation back from them