Subscription change?

so the number of system i can protect reduces but my annual price does not change?

To assist you further, you may our sales support. For more information, you may visit this link: https://helpcenter.trendmicro.com/en-us/contact-support/

My auto payment bank details have changed. How do I change them to the correct ones? When looking at the App, it doesn’t show my expiry date. So I’m unable to click on that to get to the subscription information.