JUDGMENT OF THE COURT OF FIRST INSTANCE of 14 May 1997 in Joined Cases T-70/92 and T-71/92: Florimex BV and Vereniging van Groothandelaren in Bloemkwekerijprodukten v. Commission of the European Communities (Competition - Decision rejecting a complaint sent to the complainants' lawyer's postoffice box - Calculation of time-limit for bringing an action - Compatibility with Article 2 of Regulation No 26 of a fee charged to external suppliers on floricultural products supplied to wholesalers established on the premises of a cooperative society of auctioneers - Statement of reasons)