Cancellation of a policy and taking another

I have 3 funeral policies with liberty life at the moment. Policy numbers: a) ********** 364, b) ********** 288 c) ********** 686 When one of the consultants by the name of Sibusiso Ngubane called me and made an appointment to come and updates my policies( which I had 2 at that time, policy a & b) I told him I'm paying to much for policy b. Then he told me we can do a new policy and cancel policy b. He came to my place and we did that(took policy c) and that was 2months back(September). In that 2months liberty is still deducting that policy (b) which was supposed to be canceled. When I call Sibusiso, he tells me that he emailed the cancelation former to joburg offices. But when I call the braamfontein offices they tell me there's no cancellation on the b policy. Now I asked them to refund me for the 2months they say they can't help me on that. Can you guys please help me get my refund and cancel the b policy.