Access Back after lost account from stolen device

Hello Holos - 

I am trying to figure out what to do . I had a device stolen (from a family member I believe) and my SWGOH account was unlinked from my Facebook at the time. I happened switch from iPhone to an android and when I logged into my google play I happen to get back into my account. I got it linked to an EA account - wish I could have done that previously. Since I have tis done it seems like the person stopped playing on my account and I was wondering if there is a way to make sure the login on my old devices gets cleared? sO I can make sure that I have full access back?