Can't cancel my car ensurance

I had ensurance for 2 months and then I sent then numerous emails from the 16the July 2023 to cancel my ensurance. I haven't received any response. My debit order still went off. I have requested numerous call backs on the App but no response. I have phoned numerous times, but every time no one can help or let me talk to a manager nor come back to me. And if someone picks up then they puy me through to someone else and then after 40min I still need to hold for some kind of assistance.

I dont even have the car anymore but still need to pay. When I asked for a quote, over 20 agents phoned me, but now when I want to cancel no one can help me. I think it is very unprofessional and very unfair.