Sherpa eVisa and eTA FAQs Frequently Asked Questions How can I request a callback? Nik July 31, 2024 16:37 To request a callback from our specialist team, use the blue Request a callback button in the top right or click here. Related articles I need help! How do I contact Sherpa? What kind of headshot picture should I use? What’s the best way to upload an image of my passport biodata page? Do I need to create an account or sign into Help Centre to get assistance? My application has been denied, what do I do?