Who are these people and what do they want?  Yes they keep calling me to 3 calls in 1.5 hours.

This number has called 5 times in the last 3 hours.  Very annoying and should not be allowed.

7 calls over 3 days. Say it's a radio survey. Told me they will take me off their list but they can't help it because that's the way their dealer works. Their number is obviously computer generated, with a 555. Don't know how to block it.

Keeps calling every hour

This number keeps calling 4-5 times a day, every day, and when answered nobody responds getting tired of it!

4 times in the past 4 hours, the same yesterday.  Blocking them via Shaw now.