How do we add an additional phone number to receive verification codes?

We need to add to our booking account an additional number, in order to receive to that phone number verification codes, when we log in or when we want to view a credit card. How do we do that?


1. Go to Extranet
2. Choose Account on top right
3. Click Security
4. + Add new number


Did the above steps. System calls new mobile, I enter the code in the security page and then shws this number as pending approval. Should I wait for someone to call for verification??