Experian no assistance or reply

Found a ********** listing against me April 2021 for alleged debt from 2012, After several mails, registering on their portal submission of documents, No reply from Experian and listing ********** listing remains 11 months later, Debt collectors tried to ****** money from me, I denied any debt, I was told that they will show me, Next thing I know I am listed at Experian as 9 months in arrears. I cannot come to any other conclusion than Experian is somehow involved with these debt collectors that buys prescribed debt against the law and then threatening consumers, if you do not pay you are listed with Experian credit, none of the other bureaus allows this ******* activity, I would like experian to be audited and investigated.