When an original creditor has reported to a CRA and then sells the debt to a debt collector, they are required to promptly report a $0 balance to the CRA upon their sale of the debt, as you no longer owe the debt to the original creditor. They are not otherwise required to delete any other accurate reporting.
You cannot offer a pay for deletion to the original creditor after they have sold the debt, as you no longer have any debt with them.
You can request the original creditor to do a good-will deletion of either derogs or of their entire account, but grant of a GW deletion on their part is entirely voluntary. The CRAs instruct creditors not to delete based on the debt having been paid, but you can still give it a shot with the creditor. You may get lucky.......
