I had a limit buy order set to but a specific crypto (XRP) at a lower price. The order has now been filled but for some strange reason I can't see any trade history indicating that the crypto price went that low.
simply look into chart and change time frame to 1 day . look for date your order is filled what the lowest prices for that day.

1 candle represent what the highest and the lowest price for 1 day ( if you change time frame to 1 day )