Experian should be closed down with all their errors

My son has been trying for months now to sort out his credit score and all acoounts that they list in arrears is paid up 2 to 3 years ago and noe suddenly it appears as in arrears for 12 months but 12 months ago it wasnt even on the report cause it was pain in 2017. You never get hold of anyone telrphonically and dispute take 21 days and after 21 days you have to lock another dispute. The funny part is that none of this is showing on other credit bureaus but all banks check through experian and after months my son still struggle to buy a car due to this mess. Surely after reading all the complaints from others with the same problem experian must realise they have messed up big time and they should start fixing the problem or all should just take it up with the NCR and get experian of the map. After sorting one thing out the list another thing and then try and make excuses. Sick and tired of dealing with people that cant sort the problem out.