Selling a yorkie wanted money with strange visa card

I have been emailing [email protected] to see about getting a toy female yorkie. She said it would be $300 – she was only charging me for shipping. The shipping company would call today and make final arrangements. The shipping company (theirs is the phone #) texted me and when I tried to call, I couldn’t hear. He then sent me an email from this email address AirCargo Transport” Thankfully I talked to my son first and he went on line and found out this was a scam. Saved me hard earned $. They were going to charge me $300.