Under 6,000 tickets remain for the Carling Cup semi-final first leg against Birmingham City on 11 January - with a maximum of four tickets per application.
The seats went on general sale at the weekend to all supporters, prompting a flurry of calls and inquiries to the Ticket Office to rival the snow falling on east London. Season ticket holders and members can still buy but will have to move quick if they want to sit in their usual place. As usual, whatever the weather outside, fans can buy online, over the phone or in person from the ticket office.
Season tickets holders have been given £15 off their seats, and they can still take advantage of this promotion even though their own exclusive selling period has ended.
The second leg at St Andrew's will follow on Wednesday 26 January. Were the Hammers to win through, the final will be played at Wembley on Sunday 27 February.
CLICK HERE TO GO TO THE HAMMERS BOX OFFICEWest Ham have reached the League Cup final twice in their history, losing out on both occasions. West Brom ran out 5-3 aggregate winners in 1965/66, while Liverpool earned a 2-1 replay victory at Villa Park in 1980/81 after the initial game at finished 1-1 at Wembley.
Birmingham won the 1963 final with a 3-1 aggregate success against Aston Villa. and were beaten 5-4 on penalties by Liverpool in the 2001 final after a 1-1 draw.
* Fans should notice the Hammers' allocation for the away leg at St. Andrew's on 26 January is sold out, with all applications received by season ticket holders having been successful.