Premier PC Support

Does anyone know where Premier PC Support located at I had to call them Sunday and he had to go into my facebook account by remote and my email showed up when signing in but my password is auto so it showed but ever since I've gotten a message from gmail that there has been suspicious activity., this was sent to my other email and to my phone I ended up chaanging my password but I am still getting on my phone "Sign-in error for "my email" then touch to sign in to your account and I can delete it without signing in but it keeps coming back I don't want to sign in on the phone because I don't know where its coming from and none of this happen till I called Premier support( and I didn't call them from my phone), now I'm wondering who these people are.