Our sincere apologies for your troubles deploying an M0 cluster. We are currently experiencing an issue with an upstream provider and are working with them to resolve it. As soon as it is resolved, your request to create a cluster will be processed by the system.
You can always check on platform status here: https://status.cloud.mongodb.com/ and reach out to the Support team for help with specific issues.
Again, welcome and sorry for the troubles on day 1!