Hi Craig,
Thank you for using our Microsoft Advertising Community Forum!
I understand that you need to provide proof of domain for your Advertiser Identity Verification (AIV). There is not a list with exact documents for each country, but proof of domain is one of the most common documents you need to submit for the AIV process.
You can basically upload any official documents you have that are related to your domain/main URL you have your advertising activities on. Please note that you may have to submit your documents and appeal the decision up to three times before we could raise an escalation for your case via our support teams. For further information about the overall process, please see the extended Forum article on this platform:
How to Verify my Microsoft Advertising Account? (Advertiser Identity - Microsoft Community
For further information, please see the latest help pages on this topic:
Advertiser identity verification
Advertiser identity verification appeals
Our support teams are happy to discuss your account in more detail via phone, chat or email to provide review assistance, please see our support page to reach out!
I hope the information provided here will at least partly answer your question. If you have any additional questions please do not hesitate to reach out to our support. I have also sent you a private message asking for further details. You are more than welcome to respond to me so that I can begin the investigation on my end.
Kind regards,
Vahid | Microsoft Advertising Support Specialist | 800-518-5689