R5200 bill because Network takes 6 hours to update

So I had yet again had the joy of another ridiculous data bill. Bear in mind that Clarence Garnder (call centre agent-incredibly rude and inadequately trained) confirmed the following Vodacom's network takes 6 hours to update, the courtesy SMS that you receive to say your bundle has run out is a \courtesy"the call limit you put on your account is subject to a 6 hour delay in terms of billing and is still your responsibility.. Therefore what ever bill outside bundle you rack up is your problem because you arent aware your bundle has run out. you have to literally sit on your phone and check you bundle every second"