I tried for tickets via Ticketmaster.mx and although they let me put them in my basket, they wouldn't sell them to me in the end. Looks like your card had to have a Mexico address, so I put in the hotel one, but still wouldn't complete the sale.
On a slightly different note, my mate has tickets from the TATC that are for Section 427, but the info from Sporran in the other post shows Section 430 for Scotland. Anyone confirm if they are both correct?