If you want to cancel your Total AV subscription, you can usually do it through your online account. I was wondering about this too because uninstalling the app doesn't always stop the subscription or future payments.
First, visit the official Total AV website and sign in using the email address linked to your account. Once you're logged in, look for the subscription, billing, or account settings section. Check the available options for managing your plan and follow the cancellation instructions if they are provided.
If you purchased Total AV through the Apple App Store or Google Play, check your subscriptions in the relevant store and cancel it there if it's listed. The cancellation process depends on where you originally purchased the plan.
After cancelling, check for a confirmation email or a message in your account. Keep that confirmation for your records. Also, remember that cancelling a subscription and requesting a refund are two different things, so you may need to contact Total AV through its official support channels if you want your money back.
If you can't find the cancellation option, contact official Total AV support and ask them to explain the steps for your particular account. It's better to confirm that the subscription has been cancelled rather than just deleting the app and assuming everything is finished.