I called Ambit this morning I tried many different numbers listed on there site. The Only number I got through to was the customer service number 877-282-6248 . Knowing that I would just get a normal employee I wasnt expecting much. I told here that I was trying to verify a Number from Ambit. I then gave her the number listed in the filing 800-756-7085 and I asked her if she could verify that number. She said she would check her directory and it would take a couple of minutes. When she came back she said that number was not listed in there directory. I then specifically asked could it be to your marketing and public relations dept and she said it was not listed there. Then she asked me if the number came up on my caller ID as being from ambit energy I said no I was just trying to figure out if they were affiliated with that number and thanked her for her time.
This was My experince I had this morning now another poster K23 called yesterday and they said it did go to them and they use it for there marketing and PR dept. I don't know who he talked to but When the lady checked there directory the number is not listed there.
Take it for what it's worth Just thought I would let you know what I found out.