I see no need for you to ask this question. If someone has a minor catbot bypass like typing "lagg" repeatedly I often give them a verbal warning, but in my opinion a short mute is your true "warning" within our system.
The normal progression I use with my own mutes is often:
1 - mute for an hour
2 - mute for a day
3 - perm mute
So even if you want to try to mince words over when or how you were warned, consider this post and the 30 minute mute as a more formalized "warning".