Can I change my phone number

You can change your phone number at any time. 

Go to Settings (click the portrait icon at the top-right corner), click "Update" next to the "Phone Number" field. Submit your new phone number and verify it with a code from the text message (SMS) we send you. 

That is it. Your phone is changed. A change of the phone number does not entail any consequences, like extra verifications, limits applied to your account, etc.