Cancellation Of CamScanner Autorenewal

On 17 July, I was unexpectedly charged for a CamScanner Premium subscription after a trial period that I started through the Google Play Store. I was not clearly informed in advance that I would be charged on this date, and the renewal went through without any prior notice or warning. I would like the automatic renewal of my CamScanner Premium subscription to be cancelled so that I am not charged again in the future. I kindly request that my subscription be stopped and that this situation be confirmed to me.