We were due to see Les Mis the day after the first lockdown started and were issued with a TheBoxOffice voucher code for the amount (a lot.. 6 of us). Les Mis has just announced they are rebooking now for next summer but I cannot for the life of me find out how to use the voucher.. you can book the tickets but not using the voucher code on the Delfont theatre site, and on BoxOffice site it's not finding Les Mis!
Any ideas?