Omani freelancers – which tax form do you use on freelance sites?

Hey guys,
I’m an Omani resident setting up my freelancer account on an international platform, and it’s asking me to fill out a tax form (it suggested W-8BEN, but I’m not sure if that’s right).

Since Oman doesn’t tax individuals, I don’t have a tax ID or tax documents. Do I just leave the “Foreign Tax ID” blank or write “N/A”?

Also, I don’t have a fixed residential address right now — can I use my company’s registered address or the address on my bank statement?

Support said identity verification is optional, but I still need to complete the tax form to add my bank account and withdraw income.

Anyone from Oman dealt with this before? Would love to know what you did.