canadian pharmacy.com numerous robo calls unknown india

Internet pharmacy called CanadianPharmacy.com. I ordered meds from them 3 years ago one time and have been getting several calls daily from several different numbers. As other reviewers have stated, I block every number but they just keep coming including from "unknown" which can't be blocked. I originally gave them my cellphone business # which they call and I can't change because of numerous contacts so I'm trapped. Like other reviewers have stated your only solution is to change your #. These people are blackmailers and extortionists and are bad bad news and I don't know why our feds can't stop them since they are using US phone numbers which they should be able to trace. ABSOLUTELY DO NOT MAKE ANY CONTACT WITH THEM OR YOU WILL BE VERY SORRY! They may even use different pharmacy names on the internet which would make ordering meds on the internet very risky for several reasons. I've taken too much time already to post this review but people need to be warned.