You should contact the Hexagon Theatre for ticket queries.
CHC vice chair James Denny addressed the children and staff who had been working on the concert:
With a heavy heart I write to inform you that CHC 2020 is now unable to go ahead and provisionally postponed until 30th June.
I know many of you have been working incredibly hard on this wonderful concert, and will be disappointed by this, but I’m sure everyone is aware of the ongoing international situation. The Hexagon, in common with all Reading Council buildings, has closed indefinitely following government advice. The new date is provisional pending an improvement of the situation, but I would ask you all to keep it in your diaries as we will do all we can to make the event happen if allowed to.