Hi Ian,
Thanks so much for getting in touch. We’re really sorry to hear that your Surface Pro was returned without the keyboard and power unit that’s definitely not the experience we want you to have, and we completely understand how frustrating this must be.
You can reach us by visiting Contact Us - Microsoft Support, then selecting Surface > Service and Repair > Ask about a recent repair. Or if you’d prefer to talk to someone
Thanks again for your patience we’re here to help and we’ll do our best to make this right.