I took 1 250 mg pill per day, for chlamydia. but i read that the correct way is to take the 4 pills as a one single dosis. what's goin to happen now?

I would retake it: There may be a chance you cured it by taking it the way you did, but you are right you didn't take them the way it is prescribed. To be on the safe side, i would take it again correctly.

Less effective: The rapid onset and high levels that a single large dose of antibiotic provides can be more effective than a lower dose for several days. To ensure that the treatment was effective, get tested again for chlamydia in a week or two after treatment. Please be careful in the future and read the label on all medications prior to taking them.