This person has called many, many, times talking about water being unsafe, sounding, very intimidating and insisting that they are calling another person with a different name than mine.

Whosoever is doing this is creating bad name for his country & it is annoying when you pick it in the middle of the night & no one Answers

yes!!!!!!! I got a call from these people too, but for air duct cleaning.  the man told me if I don't clean my ducts my family & pets will DIE from mites in the air ducts. WOW!!!  
They refused to give the company name & the indian man called from a private number. I had to pretend to be interested in the service to get a phone number. he still avoided telling me the company name. he told me his name was Mark Stephens, which was clearly wrong judging by the heavy pakistani accent.

Ph # (416) 800-0323

I think the same people called me for a promotion for a bell cell phone about 2-3 weeks ago.

they probably want to get credit card info to commit fraud and our personal i.d
to report them to the BBB, you'd need their company name/number which they don't give.

everyone use caution with any weird phone calls and emails for that matter when they will not give you their company name/number.  never give your i.d or address, name, banking or credit card info.

That number also comes back to (416) 800-0323 (through (905) 695-5537). I have decided that I'm going to take some time out of my everyday and call them offering my design services, every day, Monday to Friday. I suggest that that's the best way to pat them back. Let's all make it a mission!

when I answer the phone, no one speaks and then hangs up. very annoyed

Call again and again to disturb