There was definitely a huge amount of disbelief in the German high command. Another example is their agents/spies; most modern accounts suggest that the Britis

There was definitely a huge amount of disbelief in the German high command. Another example is their agents/spies; most modern accounts suggest that the British captured or turned all of the spies sent into the country - and ran a highly successful counter agent network (the double cross system[1]). Who knows if that is true - what is certain is that the German Abwher were highly confident in their spies and ate up the misinformation. Hitler was hugely impressed with the agent network... ...as enigma decrypts showed. 1. https://en.wikipedia.org/wiki/Double-Cross_System https://en.wikipedia.org/wiki/Double-Cross_System