All you need to do is to visit this link: https://www.taxumo.com/business-registration/freelancer
Just follow Steps 1 to 4.
Please read the FAQs indicated in the page.
If you have any more questions about Taxumo BIZREG, please feel free to email firstname.lastname@example.org. ☺️
BTW, if you need help processing your registration, Taxumo's service is available in these areas: