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.
Re: what is support's phone number? Support phone number is 408.638.3750 Available 24-7. However, the first day I tried to call their phones were out and I got a Verizon message saying the number wasn't a valid phone number. It works as of 9.20.16.