A:Answer You should be able to cancel an order by logging into your account, as long as the order has not been shipped. Otherwise, you can call into us at 1-888-BESTBUY (1-888-237-8289).
http://www.bestbuy.com/site/Help-Topics/Cancel-or-Change-Your-Order/pcmcat203900050004.c?id=pcmcat203900050004
Thanks!