Buddy inc. Remotely entered iMac.
This is a sore subject! Buddy inc. had prompted my wife to let them service our iMac (running OS X, 10.10.1) remotely for Apple. Than asked for a credit card to pay for the services because our Mac was out of warranty. They told her that the card was declined and asked for a nether one, than she called me to ask how to pay for it. I could not believe what she was asking, so I told her I would look into this when I got home. We shut off the wifi and could not find anything, but don't know what to all look for. Where do we start and what do we look for?
Thank you for any help!
iMac, OS X Yosemite (10.10.1)