Sharing incorrect information to Credit bureaus

Please don't ever deal with this company. They have single handedly destroyed my credit score! They share info that my account is in arrears, that it is unsettled, and none of this true. I've been struggling for almost a year to get my credit score fixed, with ZERO support from On Air. Even after raising several disputes, again it shows missed payments for this year, AFTER they supp**** me with a letter that nothing is in arrears or unsettled. They made the mistake, but I have to get this resolved! UNACCEPTABLE