NOT WARNED OF BACKGROUND USAGE OF DATA/AIRTIME

I renewed my contract on 28 April. I was on a top up 135 with a Blackberry with BIZ. I upgraded with a Samsung A5 U Choose 150. Having enjoyed the BIZ where I could go onto the internet as much as i like.<br> <br> Firstly I was sent home with my new phone having been told all my info had been transferred from the one phone to the other and that the new phone would be operational 2 hours After 2 hours I phoned Vodacoms customer care who advised that it can take up to 24 hours. So I patiently waited for 24 hours to pass. Phone still did not work. I went back to Craighall and discovered that my new sim had not been inserted. . I accepted that this was a mistake and as we all make mistakes left it at that.. When eventually after many hours my phone eventually started to work. I switched it on. I noticed that my R60 airtime was missing. I bought R29 worth plus another R55 airtime to tide me over until the end of the month when my new contract would kick in. I switched on my phone again and noticed that again all my airtime and data was gone! At no stage was I advised that there are apps running in the background and they should be switched off. I threw away about R150 in minutes