You will need to use a different email address for the account. Just make sure it’s valid because Microsoft will send a verification email. Even though this is a free trial, Microsoft requires you to enter your payment information before you can download Outlook. Select the payment method you want to use, keeping in mind that if you don’t cancel the account before the free trial ends, you will be charged.Click the NExt button o move to the payment page. The options are: Credit Card or Debit Card, PayPal, or Mobile Phone.
Microsoft 365 will confirm the payment method is valid through its secure payment portal.
Once confirmed, you can push the Continue button to account is valid.