If you paid in full and they are reporting as settled in full then you can re-dispute based on that inaccuracy. I would dispute as "Multiple Inaccuracies" and make them verify every line on that tradeline. If you have the documentation to prove it and the don't correct it, file complaints with the BBB, AG's in both yours and their state, FTC, and if they are members, the ACA(They are BTW). Or you can just skip all that and send them an ITS with the first couple pages of the complaint. Give them 10 days to correct or delete and then sue their
****. If the CRA's call your dispute frivilous, then you can add them to the suit for willful non-compliance.
I am not normally the straight to litigation kind of person, but if you have paid in full, have the documentation to prove it, and they will not correct it, then that is deliberate credit report poisoning. You can't make them delete accurate information but you can make them report accurate information. Sometimes it takes a 2x4 and not kind words.
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****Adult term removed - Jason