Do i relist an item if winning bidder has not paid?i have contacted them but no reply,won auction saturday,had few people bidding too!

Thanks, time wasters

It's only Monday.

They may pay yet, it they don't, do all this before relisting:

Open an unpaid case after 4 days and close 4 days later. Don't close in the meantime, on a promise to pay.
If they do pay, you have a disgruntled payer on your hands, so you MUST send out via on-line trackable means, to avoid non receipt claims.
They will get a strike, you get your fees back, and they are unable to leave you feedback:

http://res.ebay.co.uk/ws/eBayISAPI.dll?ResolutionCenter
Add them to your blocked bidders list here:

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

Set your prefs to block bidders with 2 or more strikes here:

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

NEVER send a non-payer a mutual cancellation request, as they can refuse it, and you lose your fees, and they can leave you feedback.

As a seller, you can't leave negative feedback, or negative comments, so leave no feedback at all.

You have to complete the above before relisting, or offering a second chance, because if they pay in the meantime, you could end up with 2 buyers, both able to leave you feedback, and only 1 item!