How do I unsubscribe to monthly payments?

I can’t find anywhere to unsuscribe to monthly payments in the forex simulator, when I go into account it just says "Hello, (My name).

Thank you for purchasing Forex Simulator!

Your account was activated and you will get free lifetime upgrades of the product.

You can always download the most recent version here:

https://download link

Notifications about updates will pop up inside the product automatically, you can download them directly from the product.

Please don’t download demo versions using public ‘Download’ buttons - they will not work for you anyway.". There is no real option I’m able to find for unsubscribing for a monthly renewal, would I have to contact a certain email or what? I’m kind of lost without any direction. I find it very unsettling I can’t find info where do I go for this.

I would also like to know how to unsubscribe!?