When registering for a new Castr account, you will have to verify your phone number. Castr has implemented several safeguards to identify and verify the correct phone number before completing your sign-up.

Troubleshooting Phone Verification

If you are unable to verify your phone number, it could be one of the common causes below:

1. My phone number is not accepted

This might be due to the following reasons:

a. Your phone number does not exist, or our system is unable to identify your number format.

Solution: Make sure you have entered the correct phone number.

Note: Castr detects your location and adds the country code for you. So you only type in your phone number without the country code.

b. Your phone number is a landline number. We can't deliver SMS to a landline number.

Solution: Use a mobile phone number instead.

c. Your mobile carrier is not supported.

Solution: Contact our support team with your carrier name for further checking.

d. Your carrier does not support short-code messaging.

Solution: Contact your carrier to confirm this.

2. I did not receive any SMS

This might be due to the following reasons:

a. Your phone is not connected to the home carrier's network. SMS might not be delivered if your device is roaming internationally or off-network.

Solution: Check your phone settings to make sure it is connected to the home carrier's network.

b. Your phone doesn't have a sufficient signal. You can check the signal strength on your phone to see if it's weak or not.

Solution: Try to move to another area with a better phone signal or power your device off, wait 30 seconds, then power it back up.

c. The phone number has opted out of receiving messages. Some mobile providers may also block messages from certain senders or number types.

Solution: Check with your carrier for more details.

d. If another device uses the same mobile carrier to receive your message, you may not receive the OTP code on your current device.

Solution: Check to make you there's no device using the same mobile carrier as your current device, then try again.

If you think none of the above cases apply to you, please reach out to our support. We are always happy to help!

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