| Another reason they do not report is because of cost and number of accounts. The CRA's in their effort to keep their foot on our necks have decided that a company must have a minimum of 500 accounts to report, even after shouting from the mountain top they are striving for a system with integrity (EOR). This leads to many not reporting, even though a few companies have sprung up that consolidate accounts of several small companies to reach the magic 500 threshhold.
The FCRA does allow the adding of accounts for a fee.
3. Complaint of Insufficient File, or Lack of File
The FCRA does not require a consumer reporting agency to add new items of information to its file. A consumer reporting agency is not required to create new files on consumers for whom it has no file, nor is it required to add new lines of information about new accounts not reflected in an existing file, because the section permits the consumer to dispute only the completeness or accuracy of particular items of information in the file. If a consumer reporting agency chooses to add lines of information at the consumer's request, it may charge a fee for doing so.
I would bet that they will not add the tradeline for a number of reasons, even if you offered to pay. Since reporting is voluntary, you may not be able to get it added. | 
