Digby ← Yahoo Feedback My feedback 1 result found Why won't you let me add my mobile number as a sms or secondary form of ID verification - you keep telling me it's invalid, what is a valid? 1464th ranked Vote Vote Vote We're glad you're herePlease sign in to leave feedback Signed in as (Sign out) Close Close Vote We’ll send you updates on this idea 0 comments · Yahoo AU Homepage » Yahoo Mail · Edit… · Delete… · Admin → How important is this to you? Not at all You must login first! Important You must login first! Critical You must login first! We're glad you're herePlease sign in to leave feedback Signed in as (Sign out) Close Close Digby shared this idea · October 19, 2016