Delivery reports (DLR) usually take 24 hours to be updated and for international messages only.
It is worth mentioning that after Kuwait implemented mobile number portability (MNP) the delivery reports are not accurate.
They are not to be relied on to measure SMS campaign effectiveness or link open rate. Delivery reports for Kuwait will be disabled in the future.
+ Do you have contracts/monthly sending limits?
+ Why should you register Private SenderID for OTP?
+ When I send SMS, will my mobile number be shown?