I dont know why my google adwords account still got high balance, but it seems doesnt work. Could you see some images and tell me a reason?
Did you choose the right date range? And are you using the new bid option - bid optimizer (sorry, I can't remember the name, but it's new bid option)? I tried that and got the same problem as yours. I changed it back to maximum bidding and still showing 0 in the statis, but finally found that I chosed the wrong date range. You can check whether you receive any clicks from adwords campaign if you are using google analytics.