They have been calling my work number multiple times a day for the past week. All you have to do is answer it next time they call or call the number and ask them to remove your number. It takes up to a couple days to get through your system.
Just call them back and ask them to take your # off the list. Also the next time you donate blood- don't leave a phone # on the form- thats what the rep advised me over the phone. If you put the # on the form- they WILL put you back on the list. Hope this helps.