Perform routine clerical and administrative functions such as drafting correspondence, scheduling appointments, organizing and maintaining paper and electronic files, or providing information to callers.
Dial 800-4MY-XBOX (800-469-9269) to reach Microsoft's Xbox support line any time between 6 a.m. to 10 p.m. Pacific Standard Time. Microsoft also has a toll-free text communication line for Xbox support at 866-740-9269.
Best Answer: aside from calling the (800)-4MY-XBOX, you can also cancel your account through the xbox.com website (in case you don't want to go through the hassle of calling their hotline). login to www.xbox.com with your .net passport or hotmail account.