http://www.swtor.com/info/news/news-article/20180213

Rejoin the battle as a Premium Player by February 27, 2018 to receive rewards including 30-days of additional Game Time added to your account when you reactivate your subscription and apply the "SWTORSHARETHELOVE" code by February 27, 2018.

NOTE: Your account has to have been inactive for 90 days to qualify for the additional 30 days.

I've been playing this game pretty much since release. I took a couple of breaks from it in the past but it's been my "main" MMO for nearly 6 years (or however old it is) now.

My refer a friend link if you want to come back for I think 7 days and you get some random shit:

http://www.swtor.com/r/ZH9nxg