A couple suggestions.

If you actually get a letter from a collections agency, you should dispute it, in writing, within 30 days. Send the letter certified with return receipt. They will be required to verify the debt or cease collections. Since this is not a credit case it should not affect your FICO score. Incidentally, your SS# is not require to affect one's credit score.

Additionally, e-mails are a particularly poor method of legal communications. Always send a physical letter even if via fax and follow up with the paper. E-mail is about as serious as a telephone call. Companies know that you are serious when you take time to write a letter, check the grammar and formatting, and post it.

I would suggest getting the name and address of the manager of the location, the regional manager, and the district manager and cc:ing them on the letter. Eventually, they will probably close the file and say, hey, this person isn't worth the trouble.

Good Luck