Withdraw an offer

[ssksskfr2008]

I have just made an offer but I made a mistake and I would like to withdraw it. Note that I just use a mobile phone.
Thanks!

[*vyolla*]

You can retract it if the seller hasn't accepted it.

Here:

http://offer.ebay.co.uk/ws/eBayISAPI.dll?RetractBestOfferShow