Congrats on the success you’ve had. A word of caution though - disputing a valid tradeline isn’t usually a good idea. The debt was yours and you confirmed that by paying it. Trying to dispute it because you don’t want it on your reports isn’t a valid reason for disputing and sometimes it can have repercussions. Its reporting as closed and paid is proper. A paid chargeoff is dealt with by using a goodwill letter campaign. It may work, it may not. It is worth trying. Search the forum for “goodwill saturation” and read that thread. It’ll lay out how to do it.