Here's one for you:
Hospital's CA and address
Your name and address
Date
Re: Your file # xxxxxx-xx
Dear Sir or Madam:
This is a request that you cease and desist any and all telephone collection. All correspondence must be done by postal mail, as it is inconvenient for me to receive calls at home or my place of business.
Your receipt of this letter will be considered as having granted consent to the taping of any telephone calls to me at my home or business by you or your agents or assignees.
Sincerely,
me