What if I have a brother

If you are two separate people it is completely ok. Rule applies to people that have multiple accounts.

Yeah, it should be ok. It is usually easy to tell if two accounts belong to one or two users.

A duel to death

Wait a minute... do you have wifi?

so do you guys use Wi-Fi? (if you have Wi-Fi(Wi-Fi))

thats all good, but do you use a wi-fi?

I request a sauce on wi-fi joke.

It is fine but I must suggest to at least try to avoid going into the same giveaways..

Just send a heads up explaining the situation to inbox@steamgifts.com and you should be fine.