Members of the Avios loyalty programme can currently get up to 30 per cent extra when they purchase Avios to top up balances.
Those purchasing (or gifting to friends and family) between 1,000 and 15,000 Avios will get 10 per cent extra.
Purchase between 16,000 and 34,000 and you'll get 20 per cent extra, and those purchasing between 35,000 and 100,000 will get the full 30 per cent bonus.
The offer is valid for Avios purchases made before March 17.