When you have completed your training a course completion certificate is signed off by your head of training
Have a look at this form
http://www.caa.co.uk/docs/2725/CPL%20and%20IR%20CCC.pdf
Its recommended level 6....When you go to the CAA for your medical select EASA Class one
Have a look at this list Pick one close to gatwick
http://www.caa.co.uk/docs/33/Current...V11%202015.pdf