Worst credit bureau ever!

Experian is the worst credit bureau ever I lodged a dispute with them regarding my credit report which reflects accounts that have been closed more than two years ago and accounts that are in areas that are not supposed to be in arreas, but no one is helping credit history is not updated phone calls goes unanswered THIS IS AFFECTING MY CREDIT SCORE, what i have on my experian credit report is completely different from what i have on my transunion credit report, please i need help to correct this information ASAP i need to buy a house soon.