First, make sure you are using the code that is in the message itself and not the hyphenated six-digit incoming number. If this doesn't solve the problem, do the following:
1. Select "Didn't get the code?"
2. Complete the steps for requesting a new code. If you're receiving the code by phone, make sure to choose a compatible delivery method. For example, we can only send text messages to a mobile phone. For a landline phone, select an automated call.
If you received multiple codes, enter the most recent one.