let me guess... its ur first snippet...

look, many events, when just need one...

you already tried to use $level?

look

on 100:JOIN:#channelhere: { mode $chan +o $nick 
/msg $chan $nick has an access level with this bot: 4operator. }
on 150:JOIN:#channelhere: { mode $chan +a $nick 
/msg $chan $nick has an access level with this bot: 4protector. }
on 200:JOIN:#channelhere: { mode $chan +a $nick 
/msg $chan $nick has an access level with this bot: 4protector+trusted. }

if ppl with level 150 and 200 gain +a on join, no need to separate them, by the way, you need to check if bot is op on channel

on *:join:#channel:{
   if (($level($nick) isnum 150-200) && ($me isop $chan)) { 
    mode $chan +a $nick
   } 
}