These sat again until 1979–1980, where, amidst an extraordinarily volatile precious metals market, the remaining coins were sold under chaotic conditions. The GSA, having published minimum bids in November 1979, announced on January 2, 1980, that those minimum bids were no longer valid, and that prospective bidders would have to "call in" to a toll free number to get current minimum bids. Then, on February 21, 13 days after the bidding process officially began, the maximum number of coins per bidder was changed from 500 to 35. Many bidders, under these confusing conditions, ended up with no coins at all. Complaints again flooded in to Congress, but the damage had already been done, and the last silver dollars held by the United States Treasury were gone.