The guy you need to speak to regarding this is always a busy man. The staff who field your call to said man are always busy staff. They obviously are not that desperate for instructors or perhaps this scheme is not so rosy for them? Come to think of it, if the above info is true - it ain't so rosy for the instructor either! £1000/month pre-tax when instructing (and living) in the London area is pants.
You'd be better off doing the cheapest FIC you can find (usually abroad) and then approaching Cabair to instruct weekends whilst working a proper paying full-time job during the week. If Cabair are that desperate they'll bite your hand off and probably start offering you sweeteners to work during the week too at which point you can start taking them seriously without chaining yourself to a two year and £10k bond.
Anyone considering being bonded for FI work needs their bumps felt - at best you'll starve in winter and at worst you'll be £10k in debt when you have to pull out to get proper work. When you could've got your FI ticket for less than £6k that will irk you somewhat if yer ask me...
VFE.