Week 1: request the reasons and keep the evidence
A dismissal with notice need not state its reasons in the letter itself. It is up to the employee to request the reasons by registered letter within one month of notification. The employer then has one month to state them precisely; silence, or vague reasons, makes the dismissal unfair by operation of law and bars the employer from adding to them in court. This request must be drafted with care: it fixes the terms of the dispute. Meanwhile, gather the contract, payslips, appraisals and written exchanges, and sign nothing.