Yes, thats right.

With that VAT number, BREVIS COMPUTER SERVICES SA PTY LTD should appear on the invoice then, or rather BREVIS COMPUTER SERVICES SA PTY LTD t/a AFRIHOST INTERNET SERVICES. Does it?

You cant use a trading name on its own becuase 2 people in different locations can use same name since that doesnt get verified on the registration documents. Unless the trading name is also uniquely registered for VAT, but that number isnt for that.

If you use that definition of spam, then im afriad using a username the same as your company domain name apart from the .com is pretty much spamming too.

The size of the company in no way changes any laws. The size of the company affects their capacity to repay debt.

You like em, stick with em. Power to you!

PS, I didnt tell you where to signup or the concerns name.