This number has called me a few times too. I didn't answer the first time, but the second time I did answer. I said Hello a few times but there was no reply on the other end. After about thirty seconds, I just ended the call.
Got suckered in on the Colon Cleanse thing too (thanks to my mother in law) -- sigh. We've since called the company and canceled it all out. I have received 4 phone calls since yesterday afternoon (2 in the past half an hour) and although I've been polite, the last person just hung up on me. I called back the Nature Cleanse place customer service line and spoke to someone named "Frank" and asked him to take me off of their calling list. He told me it wasn't their job to do so, but was 'kind' enough to put a note on the canceled account asking for no more phone calls.
This is a huge scam. I visted thier website and enter my infor and then erased my info. I got a call 4 days later. I was very upset to say the least they said they could not let me speak to a manager and they were calling from NYC. All of which sounded very wrong. Gooled the number and found that I was not the only one. I never do anything on the web and I ended up falling for a big scam because they were shown on Oprah show. This is also linked to a Berry Detox. AVOID at all COST.