Holy crap...I did not even think about this. I only used the gates once in July. I tried in May but it didnt recognise my face so I had to go to the officer anyway. Now I wonder if I should get a letter too. Crap crap crap.
Why would you need a letter?
You moved to the UK and got your stamp years ago, so the topic discussed this thread is irrelevant to your situation - it is only relevant for people applying for their first entry clearance visa now.
The question of whether or not you need a stamp only applies if it is your FIRST entry to the U.K. on your FIRST settlement visa... because the stamp proves what date your 5-year count to ILR starts...and if there’s no stamp, there may not be a record of the date you arrived in the UK.
For all entries to the UK after that first entry, you can use the egates with no issue... so there is no problem with the fact that you used them in July.
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