British Airways has a function called Balance Booster, where members can purchase Avios at a reduced rate. The amount of Avios you could purchase depends on the your account activities of the last 30 days.
The usual multiplier is 300%, and it might not be enough if you didn’t have many recent transactions. This new promotion could help: until October 31, two more options (400% and 500%) are available.
The unit price stays the same with the 300% option, which is 0.92p per Avios. Remember that the price will rise sharply once you’ve hit the 300,000 Avios annual booster limit.
I just had a look, but I only see a max 300% boost. Must be a targeted promo.
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