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I got a UK visa last month and visited London for a week. It was my first visit to the United Kingdom. I checked-in online when I was leaving the country and entered my visa number as an additional document. I was surprised after security checks in the airport, there is no passport control and I will not get a "leave stamp" in the passport.
How do I check if my visa information was passed to immigration service? Since I had an electronic check-in via a third-party airline company website, I can not be 100% sure that the company passed the information to theUK immigration services or their website works 100% correctly.
I already read the answer from here Left UK without passing through Immigration, why?
In order to avoid misunderstandings, I am not curious about WHY I do not have leave stamp, my question is:
WHERE to check if my departure has been registered?
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