UFCBELFAST
Thanks to firefly @ OzBargain
Saw this deal on r/mma. Thanks to original poster r/HungryliketheFonz as well as to Conor McGregor for inventing the sport of mixed martial arts in the first place.
Normally only get 7 days free trial with fightpass but this code will get you 30. They do ask for credit card details but apparently you can just scroll past it and enter the code without doing so and still get the 30 days. Enjoy!
Thanks for the heads up. Can confirm you don't need to put any CC details in.