Phone Bill

I purchased data via Standard Bank Internet banking because for 5 days, I could not get through to your 808 call centre. I now log onto my accounts and see my phone bill is sitting over R1700.00 (over R800.00 in data call charges). I then came across that the data purchased was night time data that can only be used between 00:00 and 06:00. NO where when I purchased that data, did it say that this was night time data. Even when I checked balances, it did not say this was night time data. Please rectify this issue as I will not be paying this portion on my bill. The last 2 months, I have received shocking service from you and now this happens. My upgrade is due in July and if this is not rectified, I will not be renewing with you.