All guides upgraded at once

[yonaz]

Hi Zygor,

Hope you get out and injoy the sun with family as well!
Just upgraded all guides, and I wish that you could make a full packed upgrade "all guides upgraded at once". Insted of entering payment information for each upgrade. It's a little thing I know, but still.. would be appreciated.

[Cartman]

I still haven't upgraded even one guide right now, I didn't have the time to do all the clicks. But there's still plenty of time until MoP hits the stores...
About the multiple upgrades Zygor said that something easier is not possible at the moment because of the payment processor they use.