You were most likely directed to their website by a link in a Social Media site or website for a horoscope reading. This started a subscription with that company directly and is a subscription that is not being managed by Apple. You will need to cancel the subscription with that company just like any other third party subscription. Here are 3 links that may be helpful to contact them and get that subscription cancelled.
It is likely that the person who directed you to their website received money to provide that link and gets a kickback from the users that they direct. You will find this frequently on Social Media sites. It is no longer a place where you can just connect with old friends and stay in touch with family, it has now evolved into fake accounts and fake reviews where users are only interested in making money off of others.
If you are still unable to cancel the subscription, then you will need to dispute the charge with the bank of the card that is being billed.