adbrite still pays after 2/3 months, ehhh?

hello, i am an adbrite user since 6 months, and i am showing their ads since then, i got my check last month. now i heard, if you once get a check, so the first one takes 3 months, after that you will get the earnings of last month this month. so a month later
but what i see:
January 2008 » more then 80$: check to be processed on 5-1-2008
April 2008 » more then 40$: check to be processed on 7-1-2008

i have chosen for: Minimum Check Amount: $20.00
why will the earnings of april sended about 2 months?

See original post by nevret2