It looks like a scam. The general idea is that a bid costs 60 cents, and each bid increments the price by 1 cent. The maths is simple. A $286 item that sells for a price of $21 earns quibids:
2100 cents x 60 cents = $1260 + $21 = $1281.
Is that not enough for defining a scam? $1281 for a phone listed at Amazon for $286 This is a real scam example, not a fiction, and it is typical of quibids.com.
It's not all. To entice you to bid more, they lock the bids after the price reaches a certain level, like $13 in the case I refer to. This forbids new bidders to step in and gives you the impression that you have a fair chance of getting the prize. But, they will never let you get it unless you already spent 2 or 3 times its value on bids. They will make sure some fictional bidder gets it - a house robot that will outbid you.
It's not all, still. A logical and safe tactic consists in bidding in the last 2 seconds before bidding timeout. This gives others the time to bid before you. Well, tough luck, at one point, quibids will just not take your bid into account and auction the item to one of the fictional bidders 1 or 2 seconds before the bidding time has elapsed.
Stay away from them. They are just another offshore casino like scam.