Why won't my phone number verify? SMS code messages and what to do

Updated 13 November 2026

If your phone number won't verify, the message on screen tells you why. Find the message you see below and follow the step beside it.

You verify your phone in the client portal at app.jafx.com. Go to Settings → Personal information → Phone, or to the Verify page under "Verify your phone number". A verified phone is needed for the identity check. You don't need it to deposit, trade or withdraw.

Before you start: country code and number format

Choose your country code from the list next to the Phone field. Then type the rest of your number in the box beside it.
You don't need to type the + or the country code yourself.
Check the number for typos before you click Send code. Send code saves the number and sends the SMS to it.
If you typed the wrong number, correct it in Settings → Personal information and click Save changes.

Your number is verified only once you enter the SMS code and click Confirm. You then see "Phone verified." and the badge changes from Not verified · optional to Verified.

Messages you may see and what to do

Message	What it means	What to do
"Invalid code."	The code you entered doesn't match.	Check the latest SMS and enter that code.
"That code has expired. Use Resend code to get a new one."	The code is too old to use.	Click Resend code and enter the new code.
"Resend available in…"	You asked for a code less than 120 seconds ago.	Enter the code you already received, or wait for the countdown to finish and click Resend code.
"We sent you a code a moment ago. Enter it below."	A code was sent recently.	Enter that code. If it hasn't arrived, wait for the countdown and click Resend code.
"You've asked for too many codes. Please try again later."	You've reached the limit on new codes.	Stop asking for codes and wait 5 minutes before you ask for a new one.
"That phone number isn't valid. Check the country code and the number, then try again."	The number can't be used as entered.	Check the country code and the number for typos, or use a different number.
"Could not send code."	The SMS could not be sent.	Check the number and try again in a few minutes. If it keeps happening, contact us.
"Captcha verification failed. Please try again."	The robot check didn't pass.	Reload the page and click Send code again. If it happens again, turn off any ad blocker or VPN.

Waiting for a new code

You can ask for a new code every 120 seconds. Until then you see a countdown. You may also see "Please wait N seconds before requesting another code."
Always enter the code from the most recent SMS.
After "You've asked for too many codes. Please try again later.", wait 5 minutes before you ask again.

No SMS arrived

Check that the number shown in the Phone field is correct, including the country code.
Check that your phone has signal and can receive texts from international senders.
Wait for the countdown to finish, then click Resend code.
If you see "You've asked for too many codes. Please try again later.", wait 5 minutes before you ask again.

Never share your SMS code with anyone. JAFX staff will never ask you for it.

When to contact support

a genuine number keeps showing "That phone number isn't valid. Check the country code and the number, then try again."
you keep seeing "Could not send code."
the SMS never arrives.

Use live chat (the Chat button in the portal) to talk to a real person, 24/7. You can also email support@jafx.com from the email address registered on your account. Tell us:

the phone number you're adding, with its country code
the exact message you see on screen

We will never ask you for your password, a 2FA code or the SMS code.

For the full steps, see How to verify your phone number (and "Verify your phone number first. The identity check needs it."). To use a different number, see How to change your phone number.

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