GBPUSD tested again 1.34500 ( 1.34380 ) of Fibonacci Support but failed to break. As you will see on the chart price holds above the upper line of the trend channel. And this line acts as a support as well.
1.34750 is the Fibonacci Retracement 50% of the downside movement started in June 2016. For the continuation of upside movements, this level must be broken.