Who are they, they call all the time but I do not answer?

Yep, it's Waterloo.  They will keep calling you, and calling you, and calling you, until you pick up and say that you do not want to donate.  I was a donor for 15 years, but when they called me in January for the new year campaign right after I wrote a cheque in December, I told them that I was no longer a donor.   They were ok for a year, but recently started calling me again.

Yes, it is from University of Waterloo. She calls me at 8:30pm. I am a 2007 UW grad and my father had donated a little amount of money from 2003 to 2008.

They are very persistent!  I received one call after 9:30p.

If you no longer want to receive phone calls from UW, pick up the next time and call and say "I do not want to receive calls from UW anymore, take me off your phone list." That's the only way to get them to stop. If someone keeps calling you from UW and you have no affiliation, pick up the phone and tell them that you have never attended or donated to UW so that so they can erase your number from their system.Please keep in mind that these are students calling you. I worked there and can tell you all that the students do not enjoy disturbing people, they are just trying to pay the bills while they're in school.

Same again, thanks.

Two years ago, I told them not to call me and they didn't call me for a while.But they just call me now Oct 19 2011, 19:30 and last week at evening as well.