Extremely bad service

<p>I had a problem a couple of months ago with my date usage. when phoning Vodacom they advised me to install th data usage monitoring app, witch I did, and after that I didn't have any problems with my data again. The last month or so my data usage went sky high again but the data usage monitoring app says I used a lot less than what I am missing. When contacting Vodacom the operator said that the data usage monitoring app that they advised me to install is not accurate. in trying to explain my problem further to her I was told that I must not pretend that my data is missing, and that I am the only client complaining about this, and I should not make my problem hers!</p>