For Terms and Conditions see here.
Overview
Spectator tickets are £5 if bought in advance, or £10 if bought on the day.

If you buy this ticket online via the Guild website, you will be charged a booking fee of 1.5% per ticket, plus a 30p surcharge. Tickets are also available via the Guild Reception between 9-4:45 Monday to Friday. You will not be charged a booking fee or a surcharge, but please note this method is cash only. Please bring the correct tender, where possible, if purchasing at Reception.