They cally daily asking for either "Kim" or "Amy" and always hang up when I told them this is a business or no such person exist. Try to lauch an official complaint on Do Not Call list to see what happens.
These people have been calling for weeks now and ask for a name and then dont give you any information about who they are. Then they hang up! My guess is its a collection agency or law firm hired by a credit company to hunt people down. very annoying.
Through some digging 206.607.6296 this number belongs to A United Debt Collections Based out of Seattle (Mercer Island) Washington. Dont talk to them, dont give them any information, tell them you have the wrong number and not to call this number again.