Planning to repeat my Interrail experience in southern Europe next year I came across thetrainhacker.com, which proposed: "Get the latest Interrail coupon code and discount offers for unlimited rail travel across Europe. 33% OFF Youth, 20% OFF Senior, 10% OFF Adult and children go FREE. SAVE £213* on your 2019/2020 Interrail trip!"
But I have never managed to catch sight of a coupon code! All their links lead only to the current 10% off deal by Interrail. I even found a table quoting 340 euros for a 2020 Senior Global Pass, but clicking on it still didn't help. The standard price is 444 euros, the 10% offer 400 until end 2019, the price I paid last year.
It doesn't look like a scam.
Can anyone help me to realise this offer? (I'm the 82-year-old backpack/hosteller currently serialising my budget 2019 trip on the Trip Reports page.)