1. Check sent status:
1 check "√" ( fail to send ) ;
Double checks "√√" ( send successfully ) ;
1 circle "o" ( already read );
Red sign "!" ( network issue)
2. If it shows 1 check (√) or red sign (!), please
switch your network.
It may also cause by network issue from the
other side. VPN may help if there is network
restriction.
3. Sending messages too frequently.
Frequently sending messages or calling other
users may cause disturbance to other users.
Then your messaging feature will be temporarily
disabled. Please obey by imo rules and retry
after 1-30 days.
4. You are blocked by him/her.
If content sent show 1 check (√) and call failure
shows "your buddy is not online" ( standard
SMS rates may apply ) , you are blocked.
You may try to contact him via your common
friends, group, etc.
5. Your friend request is not approved.
Your daily messages will be limited and shows
red sign '!' if he/she does not accept you as
contact.
Note:
If it prompts 'You have been reported by many
users recently', sorry that your friend request
feature is forever banned and could not be
resumed.