Hello. This is kakaotalkhelp.
We will respond to your inquiry.
It is confirmed that service environment of your KakaoTalk is suspicious to send spam messages, so we suspended.
However we lift the suspension since you don't have any report of spam messages.
We apologize for inconvenience for using KakaoTalk.
As always, thank you for using kakaoTalk.
We promise to improve our service for your convenience.