cannot log in to my account

Question

cannot log in to my account

Action Constructing 0

Hello,

On 10/16/2026, I purchased a Microsoft Teams Essentials subscription. During registration, a business account with a username ending in onmicrosoft.com was created. The first time, I managed to log in. After that however, I am unable to log in because I receive an error message stating that this username does not exist.

My card is currently being charged, but I cannot log in to use the service or cancel my subscription. The automated support systems (both phone and website) are blocking me because they do not recognize my email address.

How to locate the account using my payment card details, or proceed with the immediate cancellation of the subscription?

P.S. When I created the account, I received e-mails from Microsoft for the payment I had done, as well as with the username I could use.

Sincerely, [Moderator note: Personally Identifiable Information removed]

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Nam-D 4,760 Εξωτερικό προσωπικό της Microsoft Επόπτης

Disclaimer: Since you are using English in the el-GR forum, I will respond in English as well. If you prefer Greek, please let me know.

Greeting,

Thank you for raising this concern on Microsoft Community.

Have you previously changed the UPN(User Principle Name)?

Did you call a phone number listed here: Contact Microsoft customer support | Microsoft Support

In the meantime, please try these steps:

Open an InPrivate or Incognito browser window and try signing in again.
Clear the browser cookies and cached credentials related to Microsoft 365.
Try signing in from a different browser. Sometimes, browser settings or cached data can interfere with login attempts.
Try signing in from a different device, you can successfully sign in another device or sign in on the web then we can scope down that issue is from your current computer.

After trying the above steps, please let me know if the issue is still the same for further support.

Kindly let me know if this has been helpful to you.

Action Constructing 0 Βαθμοί φήμης

2026-10-22T15:53:29.5166667+00:00

Hello,

Thank you for your answear.

No, I haven't changed the UPN. The phone numbers in Greece in the list you have sent me, don't work, unfortunately.

I have also tried the steps you described and I still have no access.

Can we please locate my account using the order ID for my Teams subscription or my payment card details?

Sincerely,[Moderator note: Personally Identifiable Information removed]
Διαγράφηκε

Αυτό το σχόλιο διαγράφηκε λόγω παραβίασης του Κώδικα συμπεριφοράς μας. Το σχόλιο αναφέρθηκε με μη αυτόματο τρόπο ή αναγνωρίστηκε μέσω αυτοματοποιημένου εντοπισμού πριν από την ανάληψη ενέργειας. Ανατρέξτε στον Κώδικα συμπεριφοράς μας για περισσότερες πληροφορίες.
Nam-D 4,760 Βαθμοί φήμης Εξωτερικό προσωπικό της Microsoft Επόπτης

2026-10-23T12:28:15.1833333+00:00
Thank you for the information provided.

Unfortunately, for security and privacy reasons, account details cannot be retrieved using only a billing email address. Only Microsoft's dedicated support team has the necessary tools and authorization to help locate and verify account information.

I understand how frustrating it could be not to be able to talk to support via a phone call; however, alternatively, there is another way that could help you interact with the Microsoft billing team. This involves creating a new temporary Microsoft 365 account to contact the support team online.

Sign up for a new Microsoft 365 Business trial using this link: Microsoft 365 Pricing for Business: Plans & Features

Once the trial account is created, log in to its Admin Center.

From the Admin Center, open a new Service Request.

In the ticket description, explain that you couldn't login with you account details on team(your.onmicrosoft.com) and you are getting such error. Then request the team to recover your account details or cancel your subscription according to your request.

Get support - Microsoft 365 admin | Microsoft Learn

Please remember to cancel the trial subscription after your original account issue is resolved to avoid any future charges.

Kindly let me know if this has been helpful.

Looking forward to hearing from you.
Action Constructing 0 Βαθμοί φήμης

2026-11-06T07:05:15.9233333+00:00

Hello,

Thank you very much for your help. It worked signing up for a new Microsoft 365 Business trial and opening a new Service Request. Everything is fixed now with my original account. Thank you again for your help, much appreciated.

Kind regards,