No email required, no waiting on a reply. You keep access until the end of the period you already paid for.
On this website (most people): it is billed directly by SmoothRizz and shows on your statement as SMOOTHRIZZ.COM. It will not appear in your Apple or App Store subscriptions — that is normal and does not mean the charge is fraudulent. Cancel with the button below.
Inside the iPhone app: Apple handles the billing, so we cannot cancel it for you. Go to Settings → tap your name → Subscriptions → SmoothRizz → Cancel.
Still stuck, or think you were charged in error? Contact support. Please don't open a bank dispute before writing to us — we can usually sort it out the same day, and a dispute permanently closes your account.