Not cooling

ok first of all don't panic!!! Move the fridge out from the wall again and unplug it. get down low with a good torch and inspect the undercarriage of the fridge, there you will see a black rounded shape object which is the compressor, be careful not to touch it because it will be hot , secondly you should be able to see a coil and a small fan which blows air through the coil to cool down the refrigerant, once you can see these objects inspect the fan and see if it spins , if it does then turn the fridge back on and check to see if it is running when the compressor is running, if it is not then the fan is seized and will require replacement, if you think you are competent to carry out the works be sure to take note of what wire goes where, and make sure it is unplugged completely from power supply :)  Be safe!!!