Thank you for bringing this to our attention, Tatenda.

Let me provide some insights after canceling your QuickBooks Online subscription.

After you process the cancellation, you'll receive an email confirming that we have canceled it. If you didn't receive an email, you need to check again if it went through.

Let me show you how:

1. Open a web browser on your computer.
2. Sign in to QuickBooks Online as an admin user.
3. Select Settings ⚙ and then Account and settings.
4. Go to the Billing & Subscription tab.
5. In the QuickBooks section, select Cancel subscription or Cancel online.
6. Follow the onscreen steps.

If the same thing happen, I recommend contacting our Live Support Team. They can pull up your account and help cancel your subscription. 

Here's how :

1. At the top right, click the Help icon.
2. Click Contact Us.
3. Under What can we help you with?, enter any concerns.
4. Click Let's Talk.
5. You'll be routed into the Choose a way to connect with us page.
6. Choose Chat.

You can refer to this link for additional information: Cancel your QuickBooks Online subscription.

Let me know if you need anything else by commenting below. I'll be around to help you.