how can me know the promotion code at second life?

Two issues at play here, the first is free shipping and the second is mortality.

So I'll assume you've fitted yourself into a suitcase with a lifetime of Slim Jims and Hi-C. Now you're asking yourself "How am I going to enter my second life without paying for shipping?".

Let's start checking off the obvious...
1. Are you still alive? yes, so we have some time to figure this out.
2. Have you left all of your financial documents out in the open where someone would be able to easily "bequeath" your savings into their Crubidoe investment fund? no, well i'll give you a few hours to place all bank statements and financial transactions near an open... nope, actually just make sure that window is closed (i'll get in) bc i don't want those documents getting into the wrong hands.
3. have you signed up for the second life email list? yes. okay, and you haven't received a confirmation email regarding free shipping into the afterlife/second life? wow. well, i'd probably ring the ole man upstairs about this... someone (i got a guy named peter, here's hoping you have some better luck) will probably answer, just immediately ask for their manager and do that four more times as each "manager" comes to the phone... the fifth level of "upstairs" is probably as close to the ole man as you're going to get via a phone call so deal with that guy and see if they can re-add you to the list or maybe they'll throw in some free gifts or something. At least have them comp you for your time.

and that should be about it.

One final bit of advice from someone who's worked this scam to a T... have a friend lock the suitcase shut. This will avoid any opt-outs or last minute order cancellations.

The universe is a haunted house. We're all just squeaky doors.