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.
Below is a list of phone numbers for Microsoft customers. United States Support Center Contact: 1-800-426-9400. 1  Welcome to the Microsoft Sales and Partner information line. 2  To help us improve our quality of service, this call may be recorded or monitored. 3  Please note, our menu options have recently changed.