Glitzer - 3:42 pm on Jan 14, 2009 (gmt 0)

Your options:

1. Refund with grace and forget it.

2. Send a legal cease-n-desist order if she is really posting slander about your company.
Contact those websites that post her info that she's lying.
I had a bad customer who started to spam me from his Yahoo! email account. I wrote to Yahoo! and they took care of it.

3. Get a front office to diplomatically handle these customers. I have a virtual office that is my best investment in customer service that takes a big burden off me. Find one that does follow-up calls. If you need a recommendation, contact me.

4. Join your local Better Business Bureau.
Ours includes 2 or 3 arbitrations per year (we haven't used).
The customer can complain to the BBB who, unlike other sites, researches the issue and helps to resolve it. Having a reputable 3rd party involved helps the customer to understand the idiocracy of their complaint (if they have a brain larger than a pea).

Use this as a therapy session. It'll happen again. After a while, you'll better manage these types, both in customer service and mentally.