This is the real company, NOT a scam: https://lifeprotect247.com/ and some scammers are pretending to be them.
Those scammers are impersonators. They can be very rude and they will require you to pay the mobile unit as fast as possible in a very unethical manner. I had the manager on the phone recently and he was very aggressive, not far from being threatening. That must be the way they talk to innocent old people.
The scammers will tell you that the promotion will end if you hang up. They will ask you for your credit card number and will try to charge you.
The reality is: the "promotion" always lasts (I've asked the real ones).
by the way this number used to be a fake tech support scam a few months ago
more info about this scam here https://www.scam-detector.com/article/medical-alert-device-scam