From a post on the pond, it was brought up that VS TOS shows a 0 day cookie. The affiliate then allegedly emailed VS and was told there is a 30 day cookie. However, when I just checked VS TOS, that section still appears: 

6.5

(iii) A person shall not be deemed a “referral” entitling You to any commission or referral fee of any kind if that person leaves the Company site after having been directed there through the hyperlink banner ad or other promotional link (which has been supplied to You by Company) on Your website, without becoming an Company subscriber or purchaser of services of a type that entitles You to a commission or referral fee, even if at some later time that same person returns to the Company website(s), not through the banner ad or other promotional link (which has been supplied to You by Company) on Your website, and at that later time becomes a subscriber to the Company site or a purchaser of services from the Company.

If it was truly a 30 day cookie, why would the TOS not be changed in order to reflect that 30 day cookie?

In short, it says if a person clicks your banner and is taken to their site, and then leaves their site without making a purchase, even if that same user returns to the website later, it’s not a referral and we get no commission. 

So, a user has to make a purchase while they are on the site the very first time or we get dicked.