they should put an undo or a cancel button for situations like that..oh well..
A bid may be withdrawn in exceptional cases, when You have accidentally entered the wrong bid amount, for example, 1000 € instead of 10,00 €. In this case, please immediately after the withdrawal of a new offer on the correct bid amount. the description of the item after you have submitted your bid, has changed significantly.
It is not permitted to withdraw bids if You have changed your opinion about the article. You feel that you are not yet able to afford the product. You have something to offer higher than you originally intended.