mtn night voice bundle misleading info

Why mtn night night express bundle not alocate 60minutes as it shown in mtn terms coz im the one experience this issue i was buy R5 weekly night bundle as it will active 60min 00:00 -04:59am but on my number it alocate only 1 60min the ff day if i try to call in the specific time nothing please update me as i always report this but mtn gives me unsatisfying answer.