A pricing matrix: each pitch type gets a rate for each season.
Under Settings, Pricing you set a nightly rate for every pitch type in every season, alongside your per-person rates for adults, children and infants. Checkout prices each night of a stay against the season it falls in, so a booking spanning two seasons is priced correctly night by night.
Email support@pillowcase.io with your campsite name or booking reference and we'll pick it up from there.