Leading Saudi-based telecom operator Mobily has launched a new scheme under which all its subscribers will get 3GB free after registering their fingerprint for data SIM cards.The offer comes from Bayanat Al Oula, a subsidiary company of Mobily. Mobily said customers can walk into any of Mobily’s branches or authorized distributors and resellers with their national identity (iqama) along with the data SIM card to register the fingerprint and get a free 3 GB.