Proof of address, for business address.

In the process of creating and verifying my first amazon seller account. I have a newly registered business, so I signed up for the professional business account. I have completed almosy all verification, bit am stuck at the proof of address for our business address. However, due to being a recently registered business we are using our local legal firm that we used to register the business, and our address.

I have submitted a document stamped by our provincial government, it has all requested information. But it’s not accepted, due to not being the correct document type (rent receipt, utility bill etc..). As we are unable to provide a document of that type.

I have submitted a support ticket, with no response or resolution yet.

Not sure what else I can do. Any advise will be greatly appreciated.