Airtel Mobile now using Class 0 Flash SMS to spam their users

Class 0: Indicates that this message is to be displayed on the MS immediately and a message delivery report is to be sent back to the SC. The message does not have to be saved in the MS or on the SIM card (unless selected to do so by the mobile user).

looks like they are spamming using the flash sms messages platform.
 
Can say but I receive 1-2 times in a month, but since last 20-22 I haven't received singal class 0 sms.
 

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