[quote name='A Gamer']There is no 1-account-per-address rule. I don't think anyone knows for sure what or how they are currently enforcing, but many suspect it is the 'using more than 1 Live account to circumvent the 1000 tickets per day' rule. So, in order to minimize your chance of getting flagged for cheating, it is suggested that you stick with 1-account-per-address. At least until people figure out exactly what the deal is.
If you didn't get any prizes with your old accounts, then they were probably flagged, so you will never receive prizes from those accounts. Make a new one and start fresh.
You don't have to cancel your old accounts. Just don't login/use them.
You won't be able to order anything you previously ordered (and didn't receive) at the same address since even the orders from flagged accounts count towards the 1-each-prize-per-address rule.
They are not black-listing addresses, so your new account can order to the same address as the old flagged accounts (just not any of the same prizes).[/QUOTE]
Furthermore when you do actually order something you might want to use at least a different first name. From how my orders have been shaping up I believe that they are not only enforcing the one item per household, but one account per person rule, they aren't limiting the number of people per household so feel free to order for your sister, brother, dad, mom, anyone else that *might* be living there.
I'd recommend that you not use any name/address combinations that you have used on previous orders.