The service of buying/selling BCH is divided into the following steps:

When users buy BCH:

Step 1: The third-party liquidity team buys USDT from the advertiser

Step 2: The third-party liquidity team converts USDT to BCH

When users sell BCH:

Step 1: The third-party liquidity team converts BCH to USDT

Step 2: The third-party liquidity team sells USDT to the advertiser

Due to the large fluctuations in the price of crypto, the validity period of the quotation is 20 minutes (the time from order placement to crypto release must be controlled within 20 minutes).

Therefore, if the order is not completed within 20 minutes, it will be changed to the 'price expired' status, and you will receive an SMS/email notification from Poloniex. You can return to the order page to choose:

• Option 1: Obtain a new quotation and choose to continue the transaction. The new quotation may be higher or lower than the original one, depending on the current market situation.
• Option 2: If you do not accept the new offer, you will directly get the USDT purchased in the first step of the transaction, that is, the assets you purchased cannot be refunded, and the completed part of the transaction will be irrevocable.