She makes you wait regardless, there was no client before me as we were messaging regularly in the hour plus before my appointed time and she still strung me along with "wait for this, wait for that" excuses til 15mins after start, before then cutting the phone claiming she was out of power (she was using the phone during the punt!). I was outside the building so despite her not having given the flat number after repeated requests I knocked on the door until she opened it.
She is on some little psycho power trip. I would strongly advise all punters to walk if she's not ready on time, especially if you've been in repeated contact in the preceding hour.
From the above comments it's clear that there are too many indulging her wait times. I have no idea why as she is wholly unremarkable in looks, personality and skills. Those seeking a semi-compliant, English, white girl who carries the trope of fallen, public schoolgirl hooker are the only fetishists this girl ticks boxes for. I wouldn't wait 30mins for the super-hunnies that knock socks off this girls "offering", absolutely no fricking reason other than stupid stubbornness to mewl about waiting for her highness to get sorted.
@OP, there are enough options in Kingston and nearby areas for plans B-F so best do your research more widely before your next punt. IF you're only heading out with one girl in mind then you've only yourself to blame for anger persisting beyond the moment you walk away. Your mental health is all yours to manage.