While doing research on the Wow Wiki pages I found this page. I know that I am not the only one to purchase these coins for bonus rolls, but it appears as though Blizzard is reducing the coins allowed per week and increasing the price for them.
Here is the link to that page for those of you who are interested.
http://www.wowhead.com/news=285003/bonus-rolls-in-battle-for-azeroth-2-coins-per-week-increased-cost-mythic