We store your data in encrypted form (AES-256) and only the bot has access to it at the time of logging into your profile. Even if we open the database manually, we won't be able to read it without the secret key, which is stored separately from the database.
Be sure to set the end date of the range, otherwise the bot may book you for any available date in the future, even in a year, which may not be relevant.
For example, if you purchased the notification service for one applicant for 3000 rubles, then in within a month you can order the automatic recording service by the bot for 1 year for 3000 rubles, without overpaying.