Frustrated with my account and cant use phone

I would like to find out how in the world Vodacom can now simply just cut off my phone (block it) if my limit is reached without any prior warning. I used to receive sms informing me that my data limit was almost finished now I get nothing. My package subscription went up from R174.56 to R184 in July. And this month there is a data amount on my phone of approx R300. no such data balance shows since purchase last year<br> <br> PLUS I have supposedly used 344/400 sms - but I cannot use my remaining sms and my BBM is supposed to be LIMITLESS?? i am paying for this yet I cannot use it (SMS)??<br> <br> Secondly, HOW do they expect me to put down a monetary VOLUNTARY limit of an amount of no less than my current account balance to get my line \un-blocked"so that I can purchase airtime or data? but I lose it yet pay for it at the end of the month ??<br> <br> I know that there is a \""package\"" available whereby I can buy data or airtime that is cost effective for me.<br> <br> I am the mother of 2 children - my phone is the only phone in the house.<br> <br> I want 1 constant amount I want to be able to buy more airtime / data at a affordable price (not OUT OF BUNDLE RATE) I cannot afford a account of more than R750"""