Feedback&suggestions

there my balance has been deducted, but my purchase order has not arrived

Testnet address : ST3SGNYXATMGBNAHK4WN225PAFN5E3NQV7KJ7PM16

The balance would be refreshed when the trade is settled. You can check the Trade History for trade details. If the status is still settling, you need to wait until the settling is complete.