LATE ALLOCATION OF DATA/AIRTIME

I am currently on a top up 150 with Vodacom, and i 1GB data per month as an add on service. The Data and the Airtime are supposed to be allocated on the 1st of each month. Yesterday 1 march 2015, the R150 airtime was allocated and the data was not allocated. At around 10h:00 on the 1 march 2015i could not connect to the internet and could not even make calls, when i checked my balance i R0.00 airtime and i had 0 data. When i phone the customer service i was told my airtime was used to access the internet because my 1GB data was not allocated. I was again told that the back office will refund my airtime as well as my data within 48hours. Now my worry is that for the past 3 months i have been experiencing the same problem, and while waiting for the allocate or do the refund i do not have services thus i am paying for those service and should i skip payment with one day the suspend the line immediately. I think this is very unfair to me, i cant be paying for services that i am not getting, again i cant subsidise vodacom for thier own mistakes in a sense that now i need to go and buy airtime while they are keeping my airtime. I want all my airtime and data that you stole from me today.