• HOLY HIGH: FIRST MONTH Unlimited 4G DATA 1GB DAY Calls and text messages on the network are completely free Out-of-network call charges: 990 VND/minute. Sim does not have a main account *Maintain 20k per month Syntax for checking account *102# Ok * Versatile sim card suitable for all phones and tablets THANH HI DATA 1GB DAY AVAILABLE FIRST MONTH INTERNET FREE ONLY 20K MONTH *Vietnamobile 4G sim now sings HOLY package