Make sure caravan is ready for next occupier

First time at site in years,brought my family when they where young(now in their 40s)but they always had good memories so I thought I would bring my granddaughter she's 18mths.when we got to caravan outside a broken wheelchair,toy had been smashed and all over the place,seagulls poo on front door(had been there for a while)key in door wouldn't work couldn't lock door,called reception quick to respond,then toilet wouldn't flush and then the sink choked 4days there and all I did was PHONE reception to get things fixed