When I ask Siri to "Text Bob and say hello" Siri says "Ok, which email address for Bob". Of course, I don't want to send it to any email address. It should go to his mobile. If I say to use their mobile number, Siri will say there is no mobile number for that contact. Of course if I tell her to call Bob's mobile she has no issue. It is only for texting she has difficulty. For some contacts there is no problem, for many there is. If I remove the email address for the contact then Siri doesn't ask and will just send it to their mobile number. But when I re-add the email address the problem reoccurs. I tried resetting all settings. And this is an iPhone 6 set up as new.