Unsubscribe a trial tuneup

I don't want to continue with the subscription of a two months trial version of Tuneup but there is no way to find the proper link or page to do that. After testing the Tuneup my laptop became even much more slow than usual (by the way I never been happy with my Thinkpad Yoga 12, I'll never purchase again a Chinese device!!!). Please, is there anyone that can help? Thanks a lot. 
Riccardo

Hello Dear Kumar, I have sent a new mail with info that can help to understand my situation. 
Thanks for your help.
Best regards. Riccardo

Hello Riccardo, 

We acknowledge your cancellation request. 
It isn't recommended to share account/order, personal info over this public post.
We have sent you an email to your registered email address. Please check for the email and revert back to us…

Hello Riccardo, 

We acknowledge your cancellation request. 
It isn't recommended to share account/order, personal info over this public post.
We have sent you an email to your registered email address. Please check for the email and revert back to us…

Hello Dear Kumar, I have sent a new mail with info that can help to understand my situation. 
Thanks for your help.
Best regards. Riccardo

We've replied to your email, Riccardo. Please check & revert to us via it to proceed further.