That really is shockingly bad, and especially since you're in the saaarf where I always thought instructors drove around in BMWs bought on the £50-60 per hour (plus ground instruction pay) which AOPA says they get (see latest issue of General Aviation, p.13).
yeah right..... worked at the same place but was getting £10ph no retainer
(nothing for ground school) went up from £8ph in January this year. Its disgusting to be honest from what they charge students.