No solution

I can the customer care yesterday regarding the data I bought, which can be used between 11:00- 05:00. To my knowledge 11:00 is in the morning, I call in after losing my airtime cause of Vodacom I was told that the data is for 23:00:05:00 in the night.I told service line cancel the purchase she told me she can't where this is Vodacom mistake. I'm not happy able thi*****r service. All you want to do is eat our money.