As I understand it, we "Euros" are lucky only needing 400 for silver and then 800 for gold. But you must be silver before you get gold.
So you must earn 400 TP to get silver. Then you need 800 TP to get gold. So in total it's 1200 TP but can be earned in two membership years.
Funny, I always thought "eurocheat" was the definition of every silver/gold card holder outside the UK. I just realized that it refers to UK residents pretending to live on the mainland.