"Inaccurate communication"

I recently had an ENT appointment cancelled.   This is completely understandable as it was because of unexpected clinician absence. However, when my rebooked appointment was sent to me, the letter clearly states that the appointment had been moved at my request. I am concerned this may mean that waiting times are not been correctly recorded as a result.   As I am awaiting investigation for a possible cancer, the move from a five week wait to a ten week wait is significant and needs to be recorded and reported accurately.