Pricing of support

I wish to buy a licence of X1 Search 8 with support.

On this page http://www.x1.com/products/x1_search/ the support is listed at $19.95 for a year:



When I click to buy the page that comes up shows the price at $24.95:



Can someone from X1 explain the difference?

(I sent the above request to X1 by email to info@x1.com but have not received a response.)

---