For the outage
Back on January 4 the PSN was completely down, and now, Sony is making good on its promise to deliver a free day for subscribers to make up for it. I actually obtained my email over the weekend, and Sony is now working to get codes out to people this week, so check your inbox. You have until March 31 of this year to redeem your code for the one-day extension.
You can view the full official message below — check your spam folder!
Due to the recent PlayStation®Network interruption we are giving you a 1-DAY extension to your PlayStation®Plus membership. Please redeem the following voucher code by March 31, 2016, 11:59 PM PST:
Sign in to redeem your code.
The extension will be applied to the end of your current membership. This applies to all accounts that had an active PlayStation®Plus membership on January 4, 2016.
Thanks for your patience during the service interruption.
Sincerely,
PlayStation®Network