"No determination may be made by an employment tribunal in the following proceedings: (a) on a complaint under subsection (1) above [i.e. complaints by employees, as here] … unless the proceedings are instituted on or before the qualifying date determined in accordance with section 2Z below."
"The question whether added new consensual terms are a mere variation of an original contract or constitute a new contract and a rescission of the old is a matter which has always given rise to some difficulty. One goes back, albeit the case was dealing with the sale of goods and the Statute of Frauds, to Morris v Baron and Co . [1918] A.C.1. Lord Finlay L.C., in his speech emphasised that the answer to the question is always one of intention: was the intention to make a new contract, in which case the old contract was rescinded, or was the intention merely to treat the old contract as in being but with certain variations. At page 12 he said: "
"We have concluded that the proper approach to deciding these cases is to consider the full factual background in each case and among the factors which we considered it relevant to take into account in deciding whether there was a fundamental variation, as required, were the following: (i) What were the terms express or implied in the original contract of the claimant? (ii) What terms were there which permitted a change in working conditions for example as to pay, mobility, or flexibility? (iii) Did such changes require the consent of either party to the contract or could such changes be enforced by one party without the consent of the other? In the present cases there was no evidence of any enforced changes. (iv) In what manner were such changes recorded by the respondent? (v) What were the parties' perceptions of the importance of such changes?"
"We did not consider that the mere fact of the issuing of new contractual documentation of necessity meant that in every such case something less than a fundamental change in the contract as in Hogg v Dover College was sufficient to constitute a new contract and the termination of an old one. That in our view is elevating the factor of the issue of contractual documentation too high. The fact of the issue of new contractual documentation is in our view a factor to be considered and is to be given appropriate weight."
"I have been informed by Mr Green that with effect from 2 September you will be reducing your hours of work from 33 ¼ per week to 22 ½. I have notified the Financial Services Unit accordingly. A contract of employment will be forwarded to you in the near future."
"The only possible argument that there has been a termination as at1 April 2000 is that the respondent issued a new contract which she signed as acceptance of the appointment. This is a factor that when looked at against all the other factors, we are perfectly satisfied there was no termination of her old contract and no issue of a new one. This is merely in reality a consensual variation."
"We consider that there is a very significant difference between a zero hours contract where an employer is not obliged to offer any hours and an employee is not obliged to accept any hours on the one hand, and a contract which guarantees some hours, however small the number."