Just get refused to unblock my smtp 25 port (use as my personal mail server)

Port 25 is blocked by default for the past several years as a part of a campaign to prevent email spam by fraudulent users. I would advise to keep your AWS account in good financial standing for at least six months before asking AWS to remove the block again. There is no policy to demonstrate prejudice between a business and individual when it comes to these requests.

It says I linked to one of the following violation:

• A history of violations of the AWS Acceptable Use Policy
• A history of being not consistently in good standing with billing
• Not provided a valid/clear use case to warrant sending mail from EC2

I have no history of ToS violation, and sometimes have undue billing. And how can I provide something like this? Is personal email use not enough? I already changed my mx record to EC2 instance, so I can't even reply this inquiry (tracking ID is: 52834548444)

After all, why should I beg for a smtp port unblock? Is banning port 25 a common practice, or unblock it should be considered something like "additional privilege or benefits"?

And why should I use SES instead? I'm not going to send commercial advertisement or something like that. I can't even reply this inquiry after changed mx to my EC2 instance.