Sorry, I was being unclear - this was just acknowledging his request for me to report at Tenterden when I get there. When I reach Tenterden later I will of course use my callsign as some time then has passed and we have to re-establish communication.
Another example:
Farnborough: G-ZZZZ, re-contact me on 123.225.
Me: Re-contacting on 123.225.
I feel there's not much ambiguity here as it's specifically directed at me, although I should prob end with my callsign. It just feels like a bit of a waste of time as he knows it's me - who else would respond to that callsign?