It's very common in some marketplaces or in other situations of your interest to be requested these documents for security purposes.
For the first "Proof of Business Association", you can try using your EIN Letter.
For the second, "Proof of Address", it's not possible to have a Utility Bill in the name of your company because our virtual address is a mailbox service that doesn't contain a phone line, electricity, gas, or water account in its name in the United States.
However, some of our clients hire a phone line/service for their operations, which, in some cases, can be used as proof of address. Perhaps this could be an alternative for you.
In this article, we share some phone service providers that you could hire.
You can also try to use our Virtual Address agreement, which is sometimes accepted by some entities. You can request this document to our support team by clicking on this link.
If you still have any questions or need further assistance regarding this topic, we are available to help you! Simply click here to submit your support request and our team will be glad to assist you.