To find the invoice for your booking, sign into your JustPark app and click towards the top left corner of the screen. Select 'My Bookings'.
Once you have done this, you will find all of your future bookings. Click on the one which you wish to view the receipt for.
Scroll towards the bottom of the page until you find the subheading 'Payment Details'.
On the right hand side you should see 'Download Receipt' in green writing.
Select this and a PDF of your invoice which includes VAT details will appear on your screen.