It’s a traditional auction house so you can either turn up at the place on auction day and stick your hand in the air or do it online. If you do it online you can either leave an absentee bid or bid live during the sale - waiting for your lot number to come up - it’s quite entertaining as with most of them you get a live feed from the auction room and can hear the auctioneer. Either way you have to register on easyliveauction there’s usually a buyers premium to pay which is usually a % of the hammer price or a set fee up front. For my local auction I usually go with the % on top of the hammer price as I don’t spend loads. Worth reading their small print in respect of fees but usually it’s reasonable.
In terms of shipping it varies by auction house - click on sale details and shipping policy. I had a quick look and in the case of this one it’s collection on Tuesday and Wednesday after the sale and it says you can arrange your own courier. Most of the auctions won’t entertain helping you courier a bike though so ends up being collection only.
In my case the odd time I’ve bought from the auctions near me I bid online from home (so I don’t have to sit in the auction waiting I did enough of that as child - the auction was considered weekend entertainment by my parents!). I then drive down and pick up my items before they close for the day.
It’s not as complicated as I’ve made it sound and it’s really worth the effort as I’ve had some incredible bargains and also posted some great bargains on here - my Overburys in amazing condition cost something like £30 a few years ago from an auction and I posted a Bontrager OR a few weeks ago that only made £30. I’ve got great enthusiasm for auctions I guess partly out of nostalgia but also because I can post them on here in the hope someone else can get a bargain and save another retro bike.