A friend asks me for help in cancelling membership in The History Book Club. Last Friday, I found the customer service number 717-918-2665 printed on their recent invoice wasn't a working number. Their website said it was down for maintenance. Today their website works, but under "Contact us", I didn't find any phone number.
The address that their invoice gives for returning unwanted books is "Product Return Center, Hanover PA 17332". Is Hanover such a small town that "Product Return Center" is a complete address?