clog, and it didn't work.? Not only did it not work; it actually ATE through my piping. And now there's sulfuric acid all over my under-sink cabinet. Suggestions on how to contact them (the listed phone number goes to someone's cell phone voice mail), or how to go about contacting them to pay for my repair costs? I can find nothing online, for once! Please Help

Huh, did you read the instructions?
My assumption was that you did not do as indicated. The would specify the type of pipes that it would work on and how long you can let it run. i doubt they work for ABS or PVC, as they did used to work for chrome and cast iron.