Why can't I receive my Apple ID verification code?

Re: "Why I enable to verifying my Apple ID, I’m in trouble while verifying my Apple ID.

I didn’t receive my verification code, so what should I do now?"

Seems you need a trusted device that is listed in your Apple Account in order to receive the verification code:

Else: you may be able to get an email with the verification code sent to the Apple Account's listed email address.

See if Apple Support's online articles can help:

Use two-factor authentication for your Apple Account on iPhone - Apple Support

Eg: says:

"Trusted phone numbers don’t automatically receive verification codes. If you can’t access any trusted devices when setting up a new device for two-factor authentication, tap “Didn’t get a verification code?” on the new device, then choose one of your trusted phone numbers to receive the verification code."

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How to: Get a verification code and sign in with two-factor authentication - Apple Support

Eg: says:

"Whenever you sign in to your Apple Account on a new device or browser, you’ll confirm your identity with your

password and a six-digit verification code. There are a few ways you can get a verification code.

You can use the code displayed on your trusted device, or get a text or phone call.

If you use iOS 11.3 or later on your iPhone, you might not need to enter a verification code. In some cases, your trusted phone number can be automatically verified in the background on your iPhone. It’s one less

thing to do, and your account is still protected with two-factor authentication.

and

What to do: If you didn’t receive your verification or reset email - Apple Support

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The user Tip below by a respected Community member says:

"if you don't have access to a trusted device or phone number, go to iforgot.apple.com.

Then you can unlock your account with your existing password or reset your password."

See: Reset Apple ID Password without the trust… - Apple Community