DAR Waterfront and Associates collection agency, scam artists Sherman Oaks California

I received a free sample (but paid postage) for a skin care product a few months ago, Luminis.  It came in a tiny plastic bottle and was 0.5 oz of a "serum" lotion.  Like a moisturizer.  I never bought the regular size or another product from the company, which was (according to the DAR Waterfront people) Belle epoque.  Three weeks ago I received a collections letter stating I owed $197.72 for a bottle of Luminis, I'm assuming a full sized bottle, as wella as  another product called Belle Epoque. I never ordered or received these products, and would not ever order products that pricey--ever.  I am a senior citizen, but not a stupid one.  Just a limited income one.  I worried about this for three weeks before finding out that this DAR Waterfront company is a scam.  They are trying to wrest money from people who may have ordered samples, claiming these people bought products they haven't, and scaring them into worrying about their credit rating.  This musst be illegal and certainly is harrassment.  Reading the comments from others, it is downright theivery in some instances.  I have sent a letter disputing the charge, which I had to do because their "website" allows no place to post such a letter, even though the initial letter I received says there is, and the phone message I listened to (doggedly--it is slow) also states there is a place to post an online dispute letter.  But there is NOT.  So.  If anyone out there has had a successful outcome against this company, please post your result and the steps you took to get there.  Thanks.  What a crooked world we live in.