for the past two years now, my roommate and i have been getting messages on our answering machine from ppl looking for their medical supplies. for the past two years now, i've been calling them all back to let them know that i don't have their father's oxygen tank, or mother's wheelchair, or whatever, and that they must have dialed the wrong number. they're usually very thankful for the call, then apologetic for bothering us. no biggie. heaven forbid anyone run out of their oxygen! sheesh. but now, two years later, it's really starting to irritate me. i wonder if it costs money to change our phone number?