This is an excellent discount for those who want to increase their runes. Added to the bonus of premium crystals, it becomes a great option to save money.
The schedule is tight, but you may be able to take full advantage of the discount and the premium system if you buy these things in March, 26th.
You Premium status is reset on day 25 of each month. This is when all temporary premium items expire (not in 30 days, but on day 25 of each month!). After that, your Premium bar starts filling all over again.
As a suggestion to the team, discounts like that should be made after the 25th of the month for people to enjoy the premium system — That would even draw more attention to the benefits.
In addition, this promotion type should be permanent or for a longer period, since one of the main reasons that people buy accounts or crystals on irregular websites are the high price in runes and lots of cash items.