Kombi fridge repair

Hi does anyone know someone ,or is there someone on here in Sydney who can repair/re-gas a kombi camper fridge
It works but is not getting cold enough..

any idea what refrigerant is in it??

May be a problem if it is an old model

Here is a list of Refrigeration Services from the Caravan & Camping Association NSW

maybe one of them can help??

http://www.caravan-camping.com.au/supplier-directory/5,24,0

how long has it been standing doing nothing, i have found that standing it upside down for a week sometimes gets them going, there is a liquid inside them that the heat turnes it into a gas and after a time being unused pools at the base,so when its upside down can get it all flowing

dont need one anymore