She can call but will need you to be on the phone to consent to disclose your information to her. I have called plenty of times with my wife on the phone with me. You can setup a 3 way call with you your wife and IRCC. the process is frustrating as the wait time is long but since they have removed the global affairs loop hole number the waiting time for call center agent has improved big time. I always got my call connected within 30 minutes, sometime luck they connect me right away.I feel like I want my sponsor to call them now but I did not sign her as my rep so they can't really give her any pieces of information.