The Tuesday morning meeting at St Vedast (next to St Pauls Cathedral) will run as usual on Christmas Day, but at a slightly later time from 08.00 until 09.00am. See here.
This allows people to gather before starting their Christmas Day. It also offers a meeting space at what can be a stressful and possibly triggering time of year in many ways, financial and emotional.
As there is no public transport on Christmas Day, Stuart will act as a point of contact for those who would like to come who do not have their own transport. If anyone is able to offer lifts please let him know. For clarity, they cannot guarantee availability of transport for you but will help co-ordinate journeys where it is possible. Please email email@example.com