"24/7 Phone Support" Phishing group

1-888-361-1337. They claim to be a support line but it’s evident that they’re a phishing and scamming organization, asking for credit cards and etc

Do they call people? When I attempted to troll them they told me their number isn’t on the internet so I must be a prankster. What does this scam look like? That way I can find a way to fool them.