Because I still using Facebook account after I joined Community and then I missed pop-up notification. After I synced into King account ( few days later I joined Community ), the pop-up no longer appear anymore. That's mean I can't tick yes to link my account. 😔
I asked Lim yesterday but she said : " Then this pop-up notification of Link your King and Community accounts has been still no longer to be released on King Community since August 2021 "