I've spoken through PM with the OP and found out what was going on; however, for the benefit of everyone I also wanted to post here (without revealing the product name since that is the decision of the OP)...
If something like this happens to someone else, here is a quick check you can do: hover your pointer on the 'buy now' button on the vendor's order page, it will either be something like this:
(1) http://
ITEM.VENDOR.pay.clickbank.net
or it will be cloaked, eg:
(2) productname.com/cb.php
If it is the latter, go to
http://www.redirect-checker.org/ paste the clocked link there and it should give you a link like (1).
Check the number/code of ITEM in the link. It would be e.g. 1, 10, or a combination of letters, eg prod1
Next, go to your analytics page, and on the left hand side click SALES -> BY PRODUCT
It will say something in the format of:
VENDOR:
ITEM
If the ITEM code/number here is different than the ITEM code/number on the sales page, then the vendor may be doing something shady and cutting you out. There are other situations of course, e.g. an exit pop up offering a discounted version, so the ITEM bought will be different than that of the main sales page. However, if you got zero $ on the sale and the item number is different, be careful!
Mancar