I had similar issue while trying to find my profile to link, but a quick look at the faq mentioned that the place of birth must be the same as what is in your passport (city, state/province). After putting in exactly what was in my passport, I was able to link my account. Hope that helps.@sumanth7x Thanks for your info. Can you please let me know how to link to GCkey account, I tried yesterday with UCI, First name, family name and other combinations, it said application not found. I tried with lower and upper case for Home town/ City of birth. no luck! should we put City, state as well? Not sure what I'm missing, But cannot find my application on GCkey portal. would be great if you shed some light here.. thanks!