My account has also been frozen and account balance reseted to 0. I only receive 2 emails (refer to following) from Quoine, and Quoine did not mention anything detail about the glitch. Quoine refuse to provide me the person in-charge contact number to whom i can speak to and i have dropped them multiple emails without any reply or response.

The account balance was simply deducted without any form of accounting and information.

This is what they do to my account:
SGD: I am holding SGD 2xx before the reconciliation, they make my balance to become - SGD 4841.34 on 10 July. On 11 July, they did another reconciliation and set my SGD account to SGD 0. They didn’t provide any details about the “Reconciliation” process. Actually I believe they don’t even know what they are doing. In fact, i also believe that they don’t know what the supposedly GLITCH is about.
Reference:

BTC: they just simply set all my BTC to 0. That mean now all my BTC belong to them.
Reference:

1st Email: Frozen Account Notification‏ on Wed, 29 Jun 2016 04:46:14 +0000

Between June 16 and June 21, a price anomaly due to a system glitch allowed continuous arbitrage across various products in the platform. Your account has been flagged as having done trades to take advantage of this glitch in violation of our terms & policies and as a result your trades during those dates will be reverted.

Until this is completed, any withdrawals (fiat and crypto currencies) have been frozen for your account.

2nd Email: Account Balance Deducted Notification on Tue, 12 Jul 2016 09:50:54 +0000‏

Between June 16 and June 23, our platform experienced pricing issues which resulted in price discrepancies across related products/currency pairs. These unintended discrepancies when exploited by some users resulted in substantial losses to our business. After inspecting your account behaviour during those dates, which resulted in abnormally large and substantial increases in your balance, your account have been identified as having taken advantage of said pricing glitch. As we deem these gains an abnormal result due to a pricing glitch in our system and not due a real market-driven result, we have decided not to honor any those gains. Therefore, your balance has been deducted by the difference between two dates, excluding any deposits you have made within this period.