First thing you do is get a name and address for the collection agency. They are required to provide it.
Next, you look up the laws in your state, and in their state. You'll find statutes for harassment.
Write a letter, stating that you are not the person in question and you don't know her. Any further attempts to contact you will be considered harassment, and you'll file a complaint with the local police in their jurisdiction. Cite the harassment statutes.
Send the letter, certified mail, return receipt requested. And send a copy to the Attorney General in your state and their state. Look on the state's website, and you'll find an address for this.
It won't necessarily stop a future one, but it will stop this one, quickly. Since I did it, I've never heard anything further about it.
Thanks.
I don’t seem to have the problem with the same agency. It’s just they never remove me from the list, and they keep selling the debt to someone else.