£1–£20: steps of £1
£1, £2, £3, ..., £20
£20–£50: steps of £2
£20, £22, £24, ..., £50
£50–£100: steps of £5
£50, £55, £60, ..., £100
£100–£200: steps of £10
£100, £110, £120, ..., £200
£200 and above: steps of £20
£200, £220, £240, ..., and so on
All bids must follow these increments. Bids that do not conform will be rounded down to the nearest correct step.
