clarification on unrequested debit order

good day my name is ntokoto khosa. in september, one of your agents approached me about joining a policy and i provided all the necessary information. i was informed that i would received a follow-up call after 30 days to confirm my participation. however now i am receving a debit order notification for payment without prior confirmation, and i do not have a policy number indicating that i am an active member. i request that you stop the debit order.