Maybe you can also share the number here then as well as the "map app" that was showing your location...
I had the same call-hack on my phone few month a go, that in about five minuts time, four calls has ben made from my phone and riping of 0.50c€ or 1€ and i have the nambers on my call-loog...but this numbers are not part of my contact list and don't know of what country they are from...when ones i saw it's call active and unknown number to me, i rejected call activity instantly on red buton and i saw the maps app was launched...than i sweep down it...i only know that on that particular day i installed "waazap" app...then after it happen that calls, i uninstalled waazup...and forgot it...newer used again...i could post numbers in here if it's alowed..but anyway it was hack for sure!:-(
Where have you bought your N9? one of the possibilities might be that this is some kind of tracking app, that allows the owner to track its device when it gets stolen. I have an app like this on my Macbook (Sends me an email with a picture from the webcam + the name of the network to wich it is connected when i send a command to it.) In my car I have installed a box with sim card and GPS that can do the following things: - Send me the gps coördinates through mail or sms - Warn me when the car starts moving between certain times - Call me, and let me hear what's going on in the car - .... This might be something similar, so if you have bought a used N9, I would start worrying that it might have been stolen or something like that.