Gravena: Free U-sim prepaid cards

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Business/Organization Type: 

Free u-sim (prepaid) + free charge (20.000 won) + free gift (Bluetooth Headset/ VR Box/ Power Bank). Pocket Wi-Fi routers (first 6 months free). 
Viber: +821099550705. 
Kakaotalk: gravena1989. 
Phone: 010-9955-0705 or (070) 5052-7272

You can visit our office: Busan, Heundae-gu, U-dong, Intellium centum, 704 office (Line 2, Centum City station, exit 4).