I have just taken out a new EE 4GEE Max contract where BT Sports is free for 24 months. But it doesn't seem easy to actually activate this offer.
You text 150 if you want to start a 3 month trial. But there is a different process for people like me (who have it included in their contract).
People on the EE support forums sent me to a BT page to set up my EE details (like mobile number and postcode) to then get sent a PIN. I got the PIN in an SMS and then the next page of the BT website says that I've come from a phishing site and won't let me continue!