I'm going to make them work to not pay me
First I asked for the $125, of course.
Then they said they said they need who provided my credit monitoring. So I gave them the name of the one provided by my corporate overlords. Took 10 seconds.
Soon they will ask you to upload some proof. So I will get either a screenshot of the email or even better, a scanned printout with a really crappy scanner.
That way they have to use an actual person to look at my attachment.
After it is all done and said, they will have probably spent a lot of billable hours to avoid paying the $125.
Then I'll take them to small claims court, and include all of the time spent trying to collect the $125.