Worse service from Discovery Insurance

Discovery debited more money from my account this month. I have lodged a complain and only got the below email and since then no response from them

Thank you for contacting us with regards to the email sent on the 4th of December 2018 about your debit order. Thank you for contacting us with regards to the email sent on the 4th of December 2018 about your debit order. We have refered this query to our finance department for them to correct the debit order and once that is done you should have an amount in credit on your policy. If you have any questions on your plan please email ********** or call us on ***. Remember you can visit www.discovery.co.za and log in to view your latest Discovery Insure Plan schedule. Kind regards T**** Mbatsane Discovery Insure