Let me rephrase.
Last year when I finalized my visa application online the website listed lots of required supporting docs. This year when I finalized my visa application online today it only asks for one supporting doc....my passport.
Why is this?

I am a south african citizen and applied for and received a standard 6 month UK visitor visa last year for holiday travel to the UK in June 2018. I am applying again now for a 6 month visa to visit the UK again in Dec 2019. I completed my application online and the final "next steps" page indicated ...