Excel 2003 Formulas

I TRIED purchasing this item since early November 2009 and today is December 8, 2009 I still have not gotten the item, even though my credit card was charged since November 11...I tried contacting the seller twice, no response. This is my worse experience using this site, this seller needs to be taught some professionalism when doing business. How can he/she be in possession of my money, not send the item and don't have the decency to at least respond to my inquiries? I strongly recommend that as much as is humanly possible, people stay far from this seller... Downright shame... PS: The system needs to allow for a "no star" rating, I tried it but it would not let me, this seller does not deserve any.