Many times the directions given by approach and ATC are not the same.
As I was flying yesterday from Washington to LHR (American 8472 heavy) for the event, I had to execute a missed approach to 27L and the heathrow director approach gave me revised vectors making me go left to right for the final. I was cleared for ILS approach to 27L and then suddenly gave me a vector to heading 300 while I was at 2000 ft. Noticing that something was amiss as I was at heading 300 to runway 27L, immediately I received a level 2 violation.
It was the heathrow director approach who directed me to heading 300 then reporting me for violation for wrong alignment to runway 27L.
Hello, by the way if you were cleared at 30 degrees to the runway heading this is normal for a ILS intercept. As you intercept the localiser you can then turn to final but otherwise you stay on the 30 degrees track :)