Please correct me if I am wrong.
(source: SCMP)
ESF: 45% off on June fee + a new emergency assistance to allow parents to defer up to 1/2 the fees from April to June.
Harrow: 20% reduction for term April to June
Nord Anglia NAIS: 12% discount for term 3 (April to June) to be applied to the first term of the coming school year
(source: personal friend)
ICHK: 50% deduction on capital levy in next academic year.