Time limits for assessments by HMRC. From 1 April 2010 the time limits for assessments and claims changed. This also applies to tax repayment claims. All these limits apply from the end of the chargeable period.
A: If the caller is in the United States, Canada or Puerto Rico, the contact number for Xbox Live support is 800-4MY-XBOX (800-469-9269). For an international direct dial call to the United States, the number is 1-425-635-7180.
Go to the Xbox Live Rewards website and enroll by clicking the 'Join Xbox Live Rewards' button. You will need a Microsoft Xbox Live account to participate. Please use the Microsoft account associated with your Xbox Live Gamertag. If you do not already have a Microsoft account, you can create one for free.