Instant email deliveryActivation guaranteeSupport every day, 08:00–22:00 UTC

Contact & support

Email [email protected]. We reply within 2 hours. Hours: every day, 08:00–22:00 UTC.

[email protected]

To get the fastest help

  • Your order number (it starts with MK-)
  • The product and the exact error message or code
  • A screenshot of Settings › System › Activation (Windows) or of the error (Office)
Contact & Support | MasterKeys