Fixing loose UQ power socket

Hi all - I have a unitiqute where the mains socket on the rear of the unit has come loose.  To the point that the cable will drag it down and short out the power.  Does anyone know if there is a quick fix for this??  Or if there is a dealer in London (oranges and lemons, Robert Taussig, etc.) that could fix without sending back to the factory??  Thanks in advance for any help!!