We paid £7 for the meal (which definitely was over priced as fuck) but they didn't charge us for our drinks. Honestly I didn't kick off about it because my poor friend was already really upset and was apologising to everyone for all of it, and I felt like refusing to pay for the meal would have just made things feel more tense for her. Admittedly the food was very tasty, even if it was 2 hours late and there wasn't much of it.
But they've lost our custom. I hate restaurants like it so much, it was really hipster and studenty, aka over priced and pretentious.
Sounds like you need me to chop some legs.