Nearly denied boarding and told I need an ETA upon arrival to the UK
Hello. I recently had a work trip to Germany. I have pre-settled status in the UK and have been living/working there for 5 years.
When flying back to the UK, the airline (BA) would not allow me to get my tickets online and I had to go to the desk to prove my migration status - though I had to explain what the EU settlement scheme is to the people at the desk.
Upon landing in the UK , the electronic gates denied me access, and I had to go to the desk to pass through migration where after some brief general questions, I was handed a leaflet and told I need to "sort my documents out". I was told to move on quickly and thus did not have time to question them there.
I have pre-settled status, and even on the leaflet, they handed me even said I do not need an ETA to enter the UK. All of my documents are connected to my UKVisa account, and I have never experienced this before.
What would have caused this? How do I make sure I don't run in to trouble at the border again? Thank you!