ADP.com > menu > sign in > need help signing in > my current employer uses ADP
If the person does currently work with a company using ADP, it will work 100% of the time.
If the person USED to work for a company using ADP, it will work some of the time. I’m guessing it has to do with the particular ADP/subsidiary services used by the most recent employer. That’s just a guess.
Why would we assume the VOIP company isn’t selling our data?