"If your employee contracts of employment refer to the NJCBI Working Rules and you do not wish to continue using them it is essential that you advise your employees, in writing, that the Working Rules no longer apply."
"(3) Where the total amount of wages paid on any occasion by an employer to a worker employed by him is less than the total amount of the wages properly payable by him to the worker on that occasion (after deductions), the amount of deficiency shall be treated for the purposes of that Part as a deduction made by the employer from the worker's wages on that occasion."
"1. I am employed by the Respondent as a Building Trade Operative and I assert that the provisions of the National Joint Council for the Building Industry Working Rule Agreement apply to me.
"1. At no time has the respondent been party to negotiations between any Trade Union and the National Joint Council for the Building Industry (NJCBI).
"1. ... in the cases of all the applicants (except for Mr Holmes and Mr M R Simpson) their contracts included a collective agreement made under the auspices of the National Joint Council for the Building Industry until the unilateral decision of the respondent to exclude such a collective agreement was affirmed by the applicants between June and August 1997. At this stage the collective agreement was not included within the contracts of these applicants.
"The Tribunal concluded that this variation to the Appellants' rates of pay, together with other benefits, constituted a unilateral breach of the Appellants' contracts of employment. It is submitted that this is incorrect and that it is not a breach of contract to pay more than the contractual terms dictate."