All my money dissapeared after a server lag spike when I was trying to learn a new level of attribute which costed 4k
I had 16152, now I only have 152
http://puu.sh/l0R5Z/9f5c3393fb.jpg
Guess I’ll have to walk and farm for a couple of hours to get on again, hah.
Something similar happened to me but at least my funds came back when I closed out the window for the shop and switched maps.
Gotta love them lag spikes!
Nooope, all my money is gone.
Guess I’ll farm until I die.
That sucks! 
Hope your luck gets better going forward 
Yeah be careful at NPCs and AH/market when it’s laggy. I’ve had a whole stack of items eaten at AH once and on the other hand I also got to sell a sword twice to an NPC. Pretty sure once they fix the lag it’ll solve these errors but yeah.
Ate mines too. Happens when an unexpected lag comes while you’re trying to buy, and you keep clicking buy. Lost my money. It didnt come back.