Check whatever account you used immediately! I got a similar call about changing my subscription to a "Premium" account so as to eliminate my monthly fee. When I told the lady (Brittney) I had a problem, excuse me we have a problem because I do not subscribe to magazines. She told me to tell my bank to call her and hung up! After the call I googled their company name "Magazines Direct" and found numerous complaints of scamming.  I hope you got this in time to block your account.