Twitter anti-spam limit reached

Just received this message on BirdyAdder "TWITTER ANTI-SPAM LIMIT REACHED"
when i used the "unfollow" function

the thing is - i followed only about 150 people today and sent 2 messages nothing else (in more than 10 hours)


Currently i'm followin about 900 people and i got about 500 followers

The account is from october 2010 or something like that

It's self explanatory you obviously triggered twitter spam filter. Lower down your numbers and start from there.

yeah but i thought limits were MUCH higher like when you follow more than 300-500 people a day