Modern Good will letters

Hi all this is my first post. I've done all the reading but it really seems like lots of the information is highly dated. My guess is that Goodwill letters dont work like they used to, is this correct?
People seem to bring up the whole "we need to report the correct thing by law" excuse now. Do lots of people still have success with Goodwill letters like they did 2-3 yrs ago? The accounts that i'd like to try them on are all student loans that were consolidated later by Sallie Mae, but some went a long long time with many 90 and 120 day lates each. Is there a response i can use when they say "we need to report the facts"?

I would like to try these letters for:
Wells Fargo student loan- old accounts that were consolidated and now held by Sallie Mae

Sallie Mae student loans - old accounts that were consolidated, now held by Sallie Mae

 

Well so far out of one response back, i got one nagatory on changing the payment status's to "current" or even "no data".
they say they get audited and need to report accurately blah blah blah.
my guess.. good will's are a thing of the past because the government has made it harder for them to be given.

 

I dont know who she said they got audited by, if she even said. Maybe it was just an excuse. Maybe the gov does not come down on them for doing it but I've seen them use this excuse with me and many other good-will posters in these forums too. Sure they may happen, and are maybe worth still working for, but it seems that companies are afraid(or say they are) of reporting incorrect information.