DeepL Free Trial Turned Into Unauthorized Billing

I subscribed to the 1-month free trial on the DeepL Translate website. However, without any renewal reminder or my consent, a charge of $345 is now scheduled to be taken from my card. The payment has not gone through yet only because my card does not currently have enough balance — but the system clearly shows that the charge will be processed once funds are available.

There is no customer service phone number or direct support line available on either the website or the app, which means I cannot reach anyone for help or information. My DeepL account email is: fa*@gmail.com**.

I request the immediate cancellation of this unauthorized payment attempt, confirmation that no charge will be made to my card, and if any charge does occur, that the full amount be refunded immediately. I also request that my subscription be terminated at once and that I receive written confirmation of this action.