I used acai berry (apparently not from the company that you are mentioning) and frankly, I couldn't tell one bit of diff. on how well I felt, or any weight loss. :) In theory it sounds great, and of course, if Oprah speaks of anything, its an instant million dollar product, <--rolling the eyes.., and it was quite expensive. But a no go for me. sorry.
OMG...same thing happened to my friend....before she even got the product they were taking money outta her account. And it took her forever and a huge fit with customer service several times to get her cash back.
Total rip off.
I'm so disappointed Oprah!