Google Voice Code Scam Messages - Beware

I got a message via Google Voice, alerting me about a $400 Amazon purchase, and to call an 833 area code number if I did not make the purchase. Very hard to understand the individual, who at a certain moment asked me to make changes on my computer to resolve this purchase. The moment I indicated to be reluctant to do this, the call was cut off, and when I tried to call the number again it blocked me. Amazon was notified and is investigating.