19 A separate defence was relied upon by RSA maintaining that the default notices were not valid in form. Notices must be clear and unambiguous.[14] It seems to me, however, that each of the notices, albeit different from each other to some extent, gives clear and unambiguous notification to the recipient of the nature of the breaches alleged. The first rectification notice dated 24 May 2007 relevantly asserted a breach of clause 23 by asserting that RSA had sold, transferred, assigned, licensed or otherwise parted with its rights and obligations under the Management Agreement without the prior written consent of Darnley. It is plain enough from this identified event (described under the heading "Breach of cl. 23 - assignment") as the complaint that RSA had no longer the undertaking which it had contracted with Darnley to manage. The second rectification notice was dated 20 August 2007 and, under the heading "Breaches of cl. 7(a) - provision of Management Services at the Premises to a high standard", the notice identified a failure "to use, make available or operate 12 respite units provided by Darnley at the Premises for the accommodation of carers". Under the same heading there was also identified a failure by RSA "to provide the services of a nurse 24 hours a day for the care and benefit of the residents". Each of the remaining defaults identified were modified somewhat by the third rectification notice dated 5 September 2008. The third rectification notice nonetheless sufficiently identified clearly and unambiguously the complaints which were the subject of the proceeding in terms which are comparable to those previously found in the earlier rectification notices. Thus, under the heading "Breaches of cl. 7(a) - provision of Management Services at the Premises to a high standard" there was, under clause 2.1, the assertion of a breach that RSA had failed "properly or at all, to use, make available or operate 12 respite units provided by Darnley at the Premises", and in clause 2.6, an allegation that RSA had failed to provide the services of a nurse for the care and benefit of the residents either (a) 24 hours a day; or (b) except for the period between about 21 - 26 June 2006, permanently to staff the post of Director of Nursing at the facility provided therefore between 9am and 5pm on weekdays. Under the heading "Breach of cl. 23 - assignment" the notice identified as a breach that RSA had "sold, transferred, assigned, licensed or otherwise parted with its rights under the management agreement without the prior written consent of Darnley". In my opinion there is nothing that is unclear or ambiguous about the terms of these notices and (if it were relevant) there was certainly no evidence that any of the notices were in any way not understood by RSA.