We had a similiar situation with our new number from Aug through last Dec.
I got calls from not only the ca's, in excess of 10 plus daily, but also the
pharmacy saying that the medication was ready, the school asking me to
pick up their sick child, the school telling me that the kid's lunch balance
was -$5, from some place where they bounced checks. You get the idea!
I got the guy's name from the answering machine when the pharmacy called,
the idiot even had the child's doctor call about missed appointments.
I finally left a message with
each caller that I was
seeking legal action against them if they continued to ignore my "remove
this number from your list" request, and against the guy who kept giving out
our number as his, as I had all of the guy's personal information, including
his child's school, his pharmacy, and so on.
The last time that the school called about his child being sick- for the 3rd
time since school started, ( the poor kid, what if it was an emergency and
pitb Dad couldn't be reached?) and needing to be picked up, I told them that
I would be up there in about 2 seconds with the police to meet mister
troublemaker and would be glad to straighten things out with him and the
school at that time.
I asked the school why they didn't remove my number after repeated
requests to do so. I told them that I was calling the police to register a
complaint against the school too. I don't know if you can do such a
thing

I told them if he got there before I did,
that he was free to
call to speak to me about his
apparent inability to understand that he didn't have any legal right to give
out my number as his.
The school said they were sorry and would give him the message.
Surprise, surprise, I haven't gotten any - not one call for
over a month for him. The ca calls had already back off for the most part,
but I was still getting calls from everyone else who this guy used in the
community until I was nasty with him and threatened to meet him in person.
I hated having to be a mean bluffer but I was going nuts running to the
phone all day- all three of my kids are medically fragile and so all calls need
to be answered due to daily issues with the kids.