AIP GEN 4.14
Where circumstances warrant, and no phraseology is available, clear and concise plain language should be used to indicate intentions.
i.e.
When blasting off and letting ATC know you will be climbing to a particular level in controlled airspace but won't enter without a clearance, one might say 'pending clearance', or similar.
or
When having already left a flight level some minutes ago but unable to get on the radio for whatever reason, using 'left FL290', rather than 'leaving FL290'.
etc.
Nothing wrong with clear, concise plain language use in radio calls.
No need to get your knickers in a knot Jack Ranga
