@TSOM -
Viber uses about 0.25MB per minute of call, and usually less than 1KB per text message.

@spetnaz -
Hmm... interesting.

Receiving the confirmation code is unfortunately only possible when registering with a "real" phone number. Meaning she can use a local real phone number where she is at, use pre-paid, or even use your help to receive the SMS/phone call with the code in your home country.

But this is only a temporary workaround, let's try to find the source of the problem.

You mean the deactivation itself happens ONLY when she's abroad? If she uses Viber on that Tablet for weeks in her home country, the problem never occurs?

Is she running a Custom ROM on her device?

Thank you for this elaborate information!

Please contact me via Private Message and specify whether or not there's an IMEI number that appears on her Galaxy Tab settings.

Here is a short guide to find the IMEI (if it exists) - http://www.technipages.com/android-find-imei-number.html

Thank you, and I await your message

Thank you for this elaborate information!

Please contact me via Private Message and specify whether or not there's an IMEI number that appears on her Galaxy Tab settings.

Here is a short guide to find the IMEI (if it exists) - http://www.technipages.com/android-find-imei-number.html

Thank you, and I await your message