A new twist on an aging scam

The nubs of it are:

A robocall from 888-943-9174 claiming you are entitled to a refund (From an expenditure you never made) asks you to call them back to claim your refund.
When you call back, they lead you to go to www.rsupport.com or www.fastsupport.com or some other remote connecting site.
If you use Windows of any genre, DON'T DO THAT! They will hack your computer and demand a ransom or try to steal your personal and/or financial info.

Because I use a Linux operating system, I was able to play

them to see what they were up to until their method failed.

Stay safe. Never let a stranger connect to your computer - even if he offers you candy or to pet his dog.