Error E6118 when purchasing additional licenses

Hello @Nikita Balenkov,

Thank you for providing the details.

Since you have already tried a different payment card and the purchase still fails with error E6118 when increasing the license quantity, this issue will require further investigation by Microsoft Support, specifically the Billing and Subscription support team.

This type of issue may require checking billing and subscription information on the backend, which cannot be accessed or investigated through the forum. A Microsoft support engineer can review the relevant backend information, collect any necessary diagnostic data, and determine what is preventing the license purchase from being processed.

I recommend that your Global Administrator create a service request with Microsoft Support through the Microsoft 365 admin center. For instructions, please refer to:

Get support - Microsoft 365 admin

If you are unsure who the Global Administrator is in your organization, please refer to:

How do I find my Microsoft 365 admin? - Microsoft Support

As a forum user, I do not have access to internal service logs, billing records, backend diagnostics, or engineering dashboards due to privacy and security restrictions. Therefore, issues that require investigation of backend billing or subscription data need to be handled directly by Microsoft Support.

When creating the support request, I recommend including the E6118 error code, the affected subscription, and the troubleshooting steps you have already performed, including trying a different payment card. This can help the billing team investigate the issue more efficiently. Thank you again for your time and understanding.