We've having a sale for the next 9 days or so. You get a 25% bonus to
any credits you purchase (the bonus doesn't carry over for mentors and
such) automatically. If you're sending a letter, as long as it's
postmarked by the end of the sale, you'll get the bonus.

Enjoy!

Penned by my hand on the 14th of Ero, in the year 332 AF.