Aircon fill port
Good afternoon gents, new member here, I’ve owned a TD5 defender for 20yrs and had numerous Discovery’s in the past, Discovery 1,3 & 4 and now a 5, it’s actually the wife’s, we love it and definitely the best one yet to drive, even though I loved the 4….but they all come with their problems

and now aircon on the D5 isn’t blowing cold, I bought a refill kit with the 1234 gas but I’m not sure I’ve found the correct port to fill, normally the cap has an L on it to indicate low side, I found 2 ports on the far right side of the engine bay (green caps) the quick fit coupling on the gauges set supplied doesn’t fit either, am I on the right ports? It would be typical of LR to be different to everyone else, is there another port for the Low side? Looked all over but no joy.
Thanks in advance.
Mike