Trying to cancel since December with NO RESPONSE

Been struggeling to cancel my house insurance since December receiving no response from Better Sure only to hear that a company tells you that their emails is not reliable HOW DO YOU TELL A CLIENT YOUR EMAILS IS NOT RELIABLE then only you want to cancel on 9 January 2025 and tell me you will pay 50% of the monthly premie back.

Its not my problem that you can not process a clients cancellation after i cancelled and send confirmation as my new insurance company will start on 1 January 2025.

Still no response regarding my premie that needs to be paid back to me.