GBPUSD 4hr bullish bat at bottom of triangle

FX_IDC:GBPUSD   British Pound / U.S. Dollar
Cable has been trading within a triangle pattern since the end of June lows with slow overlapping waves and respecting Fibonacci patterns nicely. The Mid August low was also a bullish harmonic pattern .
This harmonic bat pattern support at 1.2914-36 has us looking for a bullish reversal or bounce at least back to 1.3137 . This trade idea is wrong below 1.2850.