awaiting a month past due refund still

I order a free trial of a body detox and cancelled a few days after I recieved it. It tasted horrible and made me nautious. I called and cancelled and somehow my request never made it to the computer. I called after I found a charge on my card for almost $90 dollars. They promised a refund later that week which a month and a half later have yet to recieve. I have been on the phone numerous times with different people and can never get an answer. It is now just a few days from new years of 09 and after being promise a refund, on the 22, 23 and to the end of the week, now they say before the end of the month and then the same day someone told me not to expect it untill the 6th of January. They are very rude and I really wished I had done my research on them before I made the order. PLEASE BE CAREFULL the say they are based out of Davies, florida.