"(e) further, even if the applicant was himself unaware of the special rules which apply to applications under s 104 of the 1996 Act, relating to allegations of dismissal for asserting a statutory right, those rules would, or should have been known to the applicant's professional advisers, who were consulted by him within the 3 month primary time period, in which event it could not be said that it was not reasonably practicable for a claim on that basis, if appropriate, to have been presented within the primary time period provided by s.111 of the 1996 Act."