Does Frontier Touring transact the tickets?

No, ticket purchases are transacted by the authorised ticketing agency. You'll be taken by a link to a security protected page on their site (ie Ticketek, Ticketmaster, BOCS, Venuetix, Oztix, Moshtix, etc).

Only that ticketing agency will have access to your credit card details.  You will usually need to be a member of the ticketing agency in order to buy from them online in the pre-sale.