Mobile App Pitch Price Errors

Has anyone else noticed that the pitch prices on the mobile app are initially incorrect.

some start off with a pitch fee of £9.50 and single adult cost of £4.50 making £14 a night (correct price). Then if you add 1 more adult (making 2 adults in total) it adds on a further £4.50 (£18.50 per night).

Once you press "Proceed" then it reduces the pitch fee to £5 thus making the per night price £14 for pitch with 2 adults or the correct price.

I've heard that some people have not booked because the site seems too expensive.