When I try to add a new account to my Organization using either the Web UI or the AWS cli, I keep getting this error. I checked the quotas and I should be able to create 10 accounts. But however as of now I only have 2 accounts. It's the managing account and another account. This is the error I get when trying to use the AWS cli for this,
An error occurred (ConstraintViolationException) when calling the CreateAccount operation: You have exceeded the allowed number of AWS accounts.
I tried searching for a solution everywhere but it says to contact AWS technical support. But the problem is since I'm on Basic support tier, technical support isn't available for me and currently I'm not capable to afford the Developer support tier. I wouldn't be able to purchase it until my request for Startup credits with my startup enabling program is accepted. Even then I don't if that I could use those credits towards a support plan. So I'll appreciate any help.