Your 'max' bid is the most you are willing to pay.
for example; You put the max bid to £100, you are winning and its only £20. If someone bids £25 the system will automatically put you're bit to £26.00, this can go on until someone puts a max bid of more than your original £100. So you will only pay the amount the bid rises to. NOT the max bid.
If you bid the max, even if the bid is at a lower price and you win the bid, will you have pay the max that you bid or the regular bid price? Thanks.