Scam. Don't give them a chance to send you anything. it's a bait and switch anbd you will end up with a cartridge you can buy for $12-15 on Amazon but pay $60 to them for it. They will give you a "risk free trial" but it's risky and it's not free. Then they will be rude as hell to you and hang up on you if you won't let them bully you into paying.