Matty XK

i have had my 2011 XKR 5.0 supercharged in for service and replacement waterpump at dealer in recieving the car imediately had another problem of the raditor leaking heavily after jag releasing the car to me with the comment the car is perfect, gone back to dealer to replace the radiator and again imediately had inoperable parking sensors and aircon blowing warm even though when dropping the car off before radiator replacement aircon was crisp and cold, took the car back once again to rectify to be told i now need aircon hoses replaced and that they havent been damaged by them or have anything to do with the aircon not working and its the hoses that need replacing to my expense, has this happened to anyone else in a 2 month period or is the dealer causing my repairs to skyrocket due to competency or money grabbing tactics? thanks in advance guys!