To cancel your Microsoft 365 subscription, you will need to access the Microsoft 365 admin center. Since you mentioned that you can no longer access the Gmail account associated with the subscription, you may need to recover that account or contact Microsoft support for assistance with cancellation and refund requests. Here are the general steps to cancel your subscription:
- Go to the Microsoft 365 admin center.
- If you're using the Simplified view, select Subscriptions. If you're using the Dashboard view, go to Billing > Your products.
- Select the subscription you want to cancel.
- In the Subscription and payment settings section, select Cancel subscription.
- Follow the prompts to complete the cancellation process.
Please note that refunds are typically processed based on the type of billing account you have and the timing of your cancellation. If you are unable to cancel the subscription yourself, contacting Microsoft support directly would be the best course of action to resolve your issue and request a refund.
References: