I have google nexus 4 and i have switched off my mobile data as i only use wifi but whenever i switch on my mobile camera i don't know for some reason it deducts my money by saying some 0.0097mb used. I don't know the reason why it happens as my mobile data is on off mode.
Re: Viber problem
I am using Google nexus 4 but whenever I use viber it crashes a lot. Whenever I get a call on viber it does not respond. I only get the notification .I was using iPhone 4s never faced a problem in that phone.