Wowforreal made the comment that these payment histories are not 'made up'. I want to address that. Here are some simple logical points that ought to make sense to anyone who bothers to think about it for even a few minutes:
1) When a consumer enters into a retail installment agreement and makes every payment on time, that means they have paid as agreed. That should be a 'duh' moment.
2) When the owner of a retail installment contract sells or assigns that contract to someone else, the new owner does not buy an interest in the portion of the contract previously executed. They don't, for example, gain the right to suddenly collect on the payments that were made in that portion of the agreement - those payments have been made; the portion of the contract that was executed before such purchase is history.
3) The interest that the new owner of the contract has extends solely to the remaining portion of the contract to be executed; for practical purposes that means that your interest applies to the unpaid balance at the time that the contract was purchased or assigned. So, if there are unpaid late fees, unpaid payments, etc. at the time that your company purchased a contract, you do get to collect on those, because they are technically a part of the balance owed.
4) As the new owner of the contract you do NOT, however, get to 'go back in time' and arbitrarily decide that the previously executed portion of the contract was mismanaged by the previous owner. That means that your company does not get to go back to a point in time before you were the owner of the contract and 'decide' that the consumer did not actually pay as agreed, and then proceed to try and collect fees, etc. from that point; you can only collect from the point at which you acquired interest in the contract. That means that while the status of the note at the time you acquired interest in it may carry forward, you do not get to retroactively alter that state.
All of that adds up to what should be painfully obvious: If the previous owner of the contract says it was paid as agreed up to the point where you acquired ownership, it was paid as agreed. You cannot retroactively change that. And yes, attempting to do so is 'making stuff up', and I predict that doing so is going to get your company sued in just about every state where this practice crosses an attorney general's desk.