If the subscription is created on PayDotCom or PayPal.com/Stripe.com Or ClickBank account, you can simply login into your respective account and cancel the subscription. You can Google the steps to do it.
If you can't find it or unable to do so, then kindly drop us an email at firstname.lastname@example.org with the following details:
Subject: Cancel My Subscription
1. Product Name:
2. PayPal/Stripe Transaction ID
3. PayDotCom Transaction ID Or ClickBank Order/Receipt Number.
4. PayPal/Stripe email address through which you made the payment. (Or your account email address or