Data *****

I'm on contract and since I've gotten my contract I've had some good and some absolutely terrible months with regard to data usage. I have not changed my data settings, nor have I made use of data utilising apps in any unusual manner since taking up this contract. Yet I find myself in situations where the data Vodacom says I use is very escalated. <br> <br> When I call the call centres to ask for explanations I am sent from pillar to post and don't receive any responses that adequately answer my query: \What on my phone is using so much data?". Funny thing is that after a complaint data usage is normal for a few months and then all of a sudden it escalates for no apparent reason. <br> <br> All I get from Vodacom on this is \""No one can explain what's happening"