According to the JAA website, the requirement is 13 hours! Note use of the word ‘and’ between paragraph (A) and (B).
(i) within the three months preceding the expiry date of the rating, pass a proficiency check with an authorised examiner on either a single-engine piston aeroplane (land) or a touring motor glider; or
(ii) within 12 months preceding the expiry of the rating :
(A) complete 12 hours of [flight time in the class including] 6 hours of pilot-in-command time and 12 take-offs and 12 landings; and
(B) complete a training flight of at least 1 hours duration with a flight instructor. This flight may be replaced by any other proficiency check or skill test for a class or type rating.
www.jaa.nl/jar/jar/jar/jar.fcl.1.245.htm