data not received

I'm very disappointed with Vodacom once again. Last month I didn't receive my monthly data I had to query them and my problem was resolved. This month again I did not receive my data. I called Vodacom yesterday they send me an sms confirming to get back to me within 24 hours of wish they didn't come back to me as always. I called Vodacom today at 15 : 49 they telling me that their turn around time is 72 hours is then I can phone and complain. If they know how to do their job probably why I had to remind them with my data every month? I've never had a problem with Vodacom for the past 6 years but lately I have to beg for the service that I'm paying for every month. I don't know what went wrong? Can somebody help me and make my life easier like I use to before?