VODACOM *****S FROM THEIR CUSTOMERS!!!

I obtained a 3gig/3 gig night owl in 2013:***. I have NEVER gone over my data.This month on the 10/10 I received sms's that my data was less than 1.8gig,1.2gig then I reached 90% of my R100 call LIMIT and ALL of this while I was NOT HOME and my PC SWITCHED OFF. I live on a farm MOST OF THE TIME I DON'T EVEN HAVE SIGNAL! Complaint, ref:53-9J52R-RPFLY and 13/10 Arthur Jantjies confirmed 3gig loaded FOR FREE after they \investigated"my complaint. I was instructed to monitor my data usage. I went onto the device: K3772Z to load \""limits and warnings\"" and SURPRISE SURPRISE - I cannot load limits NOR warnings on your device!How it is possible that my account is on R451 when I have a ONE HUNDRED RAND CALL LIMIT on my device - CALL LIMIT"