If these don't answer your question, get in contact with our team
Usually this is just an issue with discord connecting to FiveM. Simply restart your FiveM and/or Discord to fix.
Use the command !suggestion {message} in the suggestions channel in discord.
Check this: https://axielgaming.com/how-to-make-a-fivem-server
You can check this by going to the Home page on the website or by looking at the #server-status channel in discord.
Open a server support ticket and explain you need a callsign and our team will sort this for you.