^I think I know why. your sales are not tracked!

example:
when user click your download link, then he clicked "Download slow speed" button. but unfortunately the file is too big for free user to download so he must upgrade/purchase premium.

then let say he decided to buy 180 days account (=$52.99) and clicked the "Credit Card" button...and guess what??? it redirects to reseller page straight away without the need to register first!!!

you may try to test it.

that's why sales are gone. @Lum, please fix this quickly!