I noticed when I checked the VM app that 25 cents was deducted from the balance on my account. Now I don't care about the 25 cents, but it made me wonder-for what? I'm still under my minutes, so I looked it up and it appears on my bill as an "XTRA", no phone number, call made at 8:12 last night. What could it be? I've attached that part of my bill, btw. Thanks!