anybody else charged NX without getting anything ?

Regarding Ultimate Game Cards, you appear to be able to buy the codes in $100, $50, $20, $15 and $10 values, yet the Nexon site only accounts for $100, $30 and $10 purchases. Does it work like a pre-paid card where say if you had grabbed a $50 code, you'd have to redeem it on the Nexon site with a $30 charge and 2 $10 charges?

May seem like an obvious question with an obvious answer, but throwing money at Nexon is full of potholes as it is.

Yep, that's how it works.