In an Auction Announcement : the advertiser does not define any amount of transport, it is the carriers and the movers who compete to offer it
cheaper quotes and once the auction deadline is over, the advertiser will choose the carrier who gave the cheapest quote.
In a Classified Ad : the advertiser defines beforehand an amount that he is ready to pay for the transport of his goods or for his moving,
and carriers and movers express interest in this announcement if they accept the defined amount. Once the announcement period is over, the advertiser may choose a carrier or a mover from among the carriers interested in its ad.