#2 - Feb. 21, 2013, 12:06 p.m.
On numerous occasions the ingame currency purchasing system refuses to proceed with the final payment options, the button to continue with both a CC purchase and a paypal purchase remain greyed out.
I don’t think I need to elaborate on how thoroughly unimpressed I am that the company can’t even manage to accept my money when I’m trying to literally throw it at you.
Yes! We’re unimpressed too, because we would like to — and should — accept your money! 
Are you getting an error message or does the purchase simply not complete? One tip I learned from a player was that you should select the little icon for your particular credit card. There are several tips in the Gem Store thread (stickied above) and I can’t remember them all, but I do know that our support queues are very small right now and if you want to contact Support by filing a ticket through the “Ask a Question” tab on that linked page, they will be able to assist you.
Alternately, if you have submitted a ticket, may I have the 12-digit number so I can look into this for you?