No help

We submitted a cancellation of insurance on 29.09.2021 within 30 days as our new policy commences 1st November. Since then we have only received standard responses. Today, we get a response to say we need to complete a form 23 which has not been sent to us. I submitted the copy of the new policy to SAHL last week and they're asking for it again. Communication is very poor. Dealing with SAHL is very frustrating as I am being sent from pillar to post with no one actually helping.