Thanks everyone. It is the brother fs100wt. The manual says not to oil so I won't. It just got me wondering as it is mentioned on here a bit and the instructions for a class I am doing in a few weeks says 'make sure your machine is oiled and you have a new needle'. It makes sense that this is only for vintage machines.
I have absolutely no idea where my nearest dealer is or even what one would look like in the UK but I will investigate!