Parking meter charges have increassed – at least they’ve got rid of the 5p.
Full details here: https://www.hillingdon.gov.uk/article/4952
Only residents get the free 30 minutes from now on. Everyone else has to pay 50p. To get your free 30 mins you now have to press the yellow button, present your Hillingdon first card and, when it’s accepted, press the green button to print the ticket.