Canceled Policy

I have canceled a motor vehicle insurance with this business and this is from February 2025 and it went quite until July 2025 seeing an attempt of a debit order coming from them. And sending me numerous messages ro say i have missed my premiums. In Sept they debit my account and i called them on the 12th Sept telling them i need this to be sorted, i was told that their system reinstated my policy how is that my problem? They sent emails to confirm it was sorted on the 15th i got a debited by the same stupid insurance. I was promised that in 48hours my money will be refunded i am here with no refund. **** insurance if you ask me.