Can't see any harm in ringing 727 and asking for some advice. Their aim is to assess your potential to progress through the next stages of the flying training pipeline. They are all highly experienced ex-military instructors; they need to be in order to be able take account of the widely differing baselines of the various individuals - differences include previous flying experience and age/maturity.
Study the map and get to know the local area features and land marks around Plymouth. This will help to get you familiar with your environment early and boost your awareness in the air.