So recently I have activated Full DND (Jio Sim) and when I redeemed the amazon voucher from SBI I didn't receive any SMS for the same. Earlier it used to be sent on both SMS and mail and even now they mentioned it will be send via both the platform so shall I opt out from Full DND ? And voucher from other banks like HDFC gyftr are send via sms only or Email also? I am yet to receive 1500 amazon voucher from HDFC now I am wondering maybe it was my fault.