I work through upwork as an independent contractor. Does anyone know if I'd qualify for the DTV with this job?

I applied as an upwork freelancer and in my first submission, I uploaded my Earning Certificate downloaded from my Upwork account. I am working with only 1 client through Upwork since 2 years.

Now, they answered me asking to upload this document:

* Employment contract or employment certificate in their country or professional portfolio showcasing digital nomad, remote worker, foreign talent or freelancer status (Please upload professional portfolio showcasing digital nomad.).

Please advice what should I upload as documents and if you have examples of documents that could help me, I will be grateful.

Thank you in advance.

Id like to apply for my Tax Id Number (TIN) to withdraw my salary from Upwork. I called around the revenue departments and they couldn’t understand me as they don’t speak English. What should I do? Please advise me 🙏

Does anybody apply as upwork freelancers? Can you share the experience,pls?