Hello
In April next year I will be travelling from Brussels to London on the Eurostar. I will be in Europe on my Australian passport but will travel to the UK on my British passport. I have entered in my UK passport to get my Eurostar seat reservation for the Brussels - London leg. On my return from London to Paris, I assume I put my Australian passport details in to get my Eurostar reservation, even though I arrived on my UK passport. For both leaving the EU for UK, then returning, I assume I do EU immigration then UK at the start of both train trips. Is this correct?
Many thanks
Jon