The other day I received an email stating "Welcome back to Facebook" - I deactivated my Facebook almost 5 years ago.
I logged on using my email and password (hoping it would work and it did) and went into the security log where it said a log in was made in Vic (I am in SA).
I changed my FB password and then deleted my account (have to wait up to 30 days)
Is there anything else I should do?
Change your email password and check login history.