[mothered]

how much do companies look at the billing address of the cards?

Under normal circumstances they do not check (there's no need to), however If suspicious activity Is detected, they'll cross-check every detail on the account.

do you think i can do two more without raising to much suspicion? using different names and delivery address.

You certainly can.

If there's absolutely no Identifiable details between each account, then that's fine. If not, the timing between each one Is crucial. Allow sufficient time from one SE to another.