ADmaven requiring VAT

Hello Blackhat community. I am currently facing an issue on Admaven and hope I can solution here. Admaven requires me to fill in my VAT before I can filling my payment details and get paid. I don't have any company and the country don't impose VAT even though I have company. So please how do I get past this? You can see the screenshot, it might help to understand what I up against here Thanks guys

it's better you ask your account manager

If your country doesn’t require VAT, you can leave the VAT field empty or input "N/A" where it asks for the VAT number.

Try entering your regular tax number, this should work.
If it doesn't work - contact them. Not all countries are using VAT, and they should know that.