Welcome to the community!
Upon checking your Trend Micro Account, you currently do not have the Auto-renewal enabled. With that, I already have manually disabled the Auto-Renewal via Digital River which is Trend Micro's authorized re-seller of items being offered within our online store.
If ever this happened again, you may refer to OPTION 2: Via Digital River's findmyorder.com on the link below.
Should you have more questions, do let us know.