I tried a WDC partial withdrawl and it worked. I will list in detail what I did.
At first I got an error code DTC 1577 - xx-yy. Not knowing whether x or y or both is the missing amount, I bought up the sum. Then I tried again and again error code showed up (with the values mentioned slightly less). One of the posters had mentioned that withdrawl magically worked the next day so I thought maybe they need some time to 'refresh'
Early next day I contacted them through QQ. I got a response asking for account id and error code. I provided them those and then they stopped replying. Today I checked my account and saw DTC amounting to xx (the middle number) has been deducted from my account. I then tried a partial WDC withdrawl and it worked.
I would like to suggest against keeping funds on Bter. It is succeptible to MitM attacks; technically even bitcointalk is more secure.
Wait, but they do have 2FA - but there's a catch. Sometimes it gets disabled for no reason. It happened to me once and somebody went into account and used my funds to trade with himself and clean out my balance. I lost quite a lot of WDCs, FTCs and LTCs. When I complained to bter I received a very heart warming reply, 'Sorry for your loss'
For some reason I seem to be on the receiving end of exchanges. Coins-E stole 12k PXCs, Bter lost me quite a big amount and even cryptsy misplaced 0.2 BTCs a few days back and now claim it is fixed. The exchange situation regarding alts is a joke.