£15.00 adults / £12.00 seniors & children click here . . . but that includes "Mooky's Circus of Dreams - Includes Tower Admission" - yes, I can see you've found this already and don't want the circus.
However, there's a link on the left for "Blackpool Tower Daily Admission - Circus Not Included" click here (yes it goes to Ticketmaster) but when you click "Find Tickets" (they don't start until November 11th (WHY)) the tickets are "not available yet". What a bad way to attract people.
There is a "Contact" link in very small letters at the bottom of the page in white text on a pale background :
01253 622 242
Make a phone call