Hello,
Your question is a bit confusing because it appears to deal with two issues.
For help with an invalid/not-active/not-supported account you need to contact Apple.
To reach Apple Support for an account issue:
1. Click here --> https://getsupport.apple.com/?caller=cups&PGF=PGF63005
2. Select: Disabled Apple ID
3. Select: ”The Apple ID is not active" alert
4. Select: “Continue”
5. Select a chat or telephone call option.
Did you change your Apple ID, or did you actually create a new account instead? The support article Change your Apple ID - Apple Support outlines various methods for changing the email address (Apple ID) you use for your Apple Account while retaining everything in your account.
If you have an iPhone or iPad:
1. Go to Settings, then tap your name.
2. Tap Sign In & Security.
3. Next to Email & Phone Numbers, tap Edit.
4. Tap the Remove button next to the email address, then tap Delete.
5. Tap Choose Another Email Address and enter your device passcode if asked.
6. Enter the new email address, then tap Continue.
7. Enter the verification code that was sent to your new email address. Read this support article to learn what to do if you didn’t get the email —> If you didn't receive your verification or reset email - Apple Support
8. If you encounter issues with certain services after doing this, this outdated support article may still have useful suggestions --> What to do after you change your Apple ID or password - Apple Support
Refer to the support article Change your Apple ID - Apple Support :
- If you don’t have an iPhone or iPad the support article says to, “go to https://appleid.apple.com and sign in. Then follow the onscreen instructions to change the email address associated with your Apple ID.”
- For general information, and other issues such as changes or addresses not being accepted.
- Note a recent change to the article where you can now change the email address without having to have access to your old email account.
or:
Contact Apple for support and service by telephone --> Contact Apple for support and service - Apple Support