You're purchasing this service for the following 3 reasons:
Reason 1: Unless the scissors is broke in half, most nicks or misalignments can be reform and readjusted.
Reason 2: This have been the most popular reason since 1921 and it may not always be "Unsalvagable". There are situation where the inexperienced sharpener have taken so much material off the scissors that it is impossible to fix.
We always request an email with a few images of the scissors's current condition. This way we can let you know ahead of time whether the scissors is workable and to it send in.
Here are some case study of what "Unsalvagable" may look like:

Select the "Mizutani Repair" service to fix sharpening problems from uncertified sharpeners. This process restores the blade’s original shape but takes about four times longer to complete.
This service covers parts replacement, ultrasonic cleaning, needed adjustments for best performance, and a special oil coating applied inside the blades.