AmeriCredit / Beware

My car was reposed and they only had it for 4 days and I just want to make everyone aware that once they take your car or truck they report it as repossession to all 3 credit bureaus. After speaking with a rep from americredit he stated that if they have it for one day they report it I said that is illegal because companies don't report until the end of each month for positive or negative credit. He said that's the way they handle things for all that I should have let them keep the car the results are the same.