Doubts about the gold trial of 2 weeks

It’s a silly question but really guys, I need to know about the 2-week gold trial that came out long ago, I’d like to know if it’s still active 'and if so … How can I activate it?

Sorry for that question, but I have nothing since I started playing Halo …

¯_(ツ)_/¯

What Gold trial are you referring to OP, is this something that came with a game you bought? Generally there is a card with a code that you can redeem over on Xbox.com

I believe if you have a gold subscription code they don’t expire.