Who called from 6479770964

I am not really sure who thos EOS is but I have blocked seven (7) different numbers from this company.  They only say it is a urgent matter that must be addressed immediately, or they just hang up.  How can we get these companies to stop harrasssing the general public.

EOS Canada (formerly NorDon) is a third-party collection agency.
http://www.eos-canada.com/
Toronto, ON   Phone: (416) 291-2113 or (800) 268-5638
Vancouver, BC   Phone: (604) 540-1200 or (866) 599-8364
Montreal, QC   Phone: (514) 383-5711 or (800) 567-7017

Well known to violate all collection laws in the US as well.

Calls few times per week from various numbers, all of which I block. Don't know how they got my number. I don't owe anyone anything and never did, and I've had no problems with this number since acquiring it in 2014, until now.

I blocked four different number but they still have others.