[G0HZU_JMR]

Agreed. However, I did look at the T&C of other auction companies and they often make it very clear that seller/auctioneer bidding is only allowed up to just under the reserve price and then it must stop. That seems really clear and reasonably fair. The wording in the two examples I gave is very vague and does not imply any limit for the value of the bids made.

Either way, the best advice I can offer to any newcomers to this type of auction is to work out the maximum total cost involved with auction fees and VAT and collection/delivery.

This can make it expensive to bid on lots of small items if the bidder only actually wins one small item and they have to collect it or pay someone to ship it by courier. That £10 PSU could become very expensive after VAT and fees and shipping... It gets worse if it turns out to be faulty or it is missing some parts inside.