So this is the reply from DJI.
It’s good they will replace it FOC and I have accepted their kind offer but I have gone back to them to look at it again as I’m just not happy it should have behaved like that if it was simply being beside water.
Why they picked out 22 seconds is a mystery as the drone kept climbing until 31 seconds when it reached 27 meters high and didn’t go out of control untill 1:19 immediately after I centred Yaw
I am fairly persistent so won’t let them away quitely
" We have now received results of the data analysis for the flyaway case and please inform us, on how you wish to proceed in regards to your remote controller.
The result is as follows:
1. The aircraft worked under GPS mode;
2. Flight Time T=00:22, Relative Height H=8.4 m, Distance to Home Point D=5.2 m, The aircraft stayed close to the water. Drift of aircraft and accidents due to ineffective positioning of aircraft on the water surface.
3. The incident coordinate: 36.6227207, 29.0998615;
4. The DJI Neo user manual has instructions that the aircraft cannot be flown over water; Please keep the water at least 10m above the surface to fly.
According to the analysis, the incident was caused by improper operation, please pay attention to the flight environment.
We understand that it takes time to familiarize yourself with your Neo. Considering your experience with DJI’s products, we would like to make a special gesture and offer you a free replacement for this case.
For safe flights in the future, we kindly recommend paying close attention to your flight environment and maintaining a minimum distance of 3 meters when flying over bodies of water."