You may be seeing this error of Insufficient credit to create a new project for different reasons:
1. You are using a trial account and you have reached the assigned spend limit. In this case, you can wait until the end of the billing cycle (so until next month's spend limit reset) and retry creating a new project.
2. Your trial account has expired and you need to add a payment method to continue using your project or creating new ones. Please note that trial accounts expire after 30 days from subscription date.
3. You have already reached the spend cap assigned to your organization. In this case, you can wait until the end of the billing cycle (so until next month's spend limit reset) or open a ticket to support to assess if increasing the spend cap is possible.
Please note that for accessing and editing your billing information, you need to be an organization owner or a user with manage billing permissions.
If you still need to contact Support, or if you are encountering issues entering your billing information, please provide the exact steps to follow to reproduce this error in a support ticket.