IF YOU WANT TO REFUND YOUR DATA SO DOWNLOAD DATABACK APPLICATION NOW BECAUSE IT COLLECTS YOUR USED DATA IT DOES NOT MATTER IF IT’S 2G, 3G OR 4G BUT ONLY ON SELECTED APPS LIKE ON WHATSAPP, FACEBOOK, GOOGLE CHROME BROWSER OR ON SHOPPING APPS. YOU CAN RECHARGE YOUR DATA AGAIN WHICH YOU HAVE BEEN USED. SO YOU CAN USED YOUR DATA AGAIN AND AGAIN. YOU CAN RECHARGE YOUR DATA IN EMERGENCY ANYTIME. THANS FOR READIND MY REVIEW.