Cancellation/Refund

I took a policy with an agent around January that was meant to start deducting in April, I "cancelled" through the agent within a week of taking the policy. Only to find that Sanlam starts deducting in April and when I called them they told me I never cancelled😡. So I started the cancellation process on my own and they still deducted for May as well😡. Please, I should be refunded for these two months.