Hello,
This is SureM (SuperM).
Today we would like to introduce about South Korea SPAM Information by All Korean Operators
Firstly, there are many cases where the messages are seen as “delivered” but actually the message is not received on the handset.
Mostly, this case is because certain words are filtered or Sender ID is blocked on KISA side therefore the messages cannot be received by final receiver.
In Korea, you are automatically registered on the SPAM filtering service by SK Telecom, KT and LG U+ if you issue a Korean number.
Each korean operator has their own blocking regulations.
If you experiencing issue in receiving message in South Korea, you can check :
1) SPAM box in the message
2) SPAM filtering app (downloading the application on App store)
For inquiry, please send email to intlsales@surem.com