Change from no vat to vat registered

When I use company settings to change to VAT registered it does not give me the green box for additional settings.

As such I can’t put in the VAT registered date of 29th September (only just got the number now).

I also can’t choose the VAT method i.e. cash or accrual.

If you save the settings and refresh the page it should appear. Otherwise you can access it from the top menu system by going to Reports >> VAT Returns and clicking the orange VAT Settings button.