Auto&General disappointing insurance cancellation process.

How i am so unhappy with the insurance cancellation process from Auto & General. I cancelled my membership with them beginning of December 2018. In December they debited of which i understood, but how they are debiting again in January while i am not covered by them anymore is beyond me. When i got my statement from Toyota mid January showing the Insurance installment will be added in my repayment end of January 2019. I emailed and called asking why does it show that i will be paying an insurance that is not covering me anymore. But no clear explanation was given. I am not happy at all with the lack of communication and now i have to be inconvenienced financially.