Both parties appealed. UNAT held that UNDT was correct regarding the non-receivability ratione materiae with respect to the first three decisions. UNAT, however, disagreed with UNDT鈥檚 finding that the Administration had unlawfully delayed check-out, including his final payments and the submission of the required forms for his pension, since the period of three and a half months which was taken by the Administration to investigate and proceed with Mr Nchimbi鈥檚 鈥渃heck-out鈥� was not unreasonable in the given circumstances. UNAT upheld the Secretary-General's appeal and dismissed Mr Nchimbi鈥檚...