[Xaccers]

I keep getting ones that appear to be porn (from the subject line)
I delete them straight away.

On my old phone I downloaded a background and got a txt offering to set me up on a chat system, which I didn't respond to.
Started getting fake messages, each trying to get me to reply, so I replied "STOP" and got a msg saying I've been unsubscribed (would have been nice to have had the choice not to subscribe in the first place!) Wasn't charged anything though