vodacoms *********** managers

on the 09/08/2015 i bought data bundles worth 100mb and after 4 hours i was told my data had been depleted and so was the airtime of R19.00 that was left in my account. i then decided to call the contact centre to ask them if they were experiencing technical problems of which i was told no they werent and that my data was truelly depleted i then asked how come and was told it was because my internet apps were not restricted of which all of my apps are except for watsapp. i then asked to speak to the manager and he said his name was vincent he then promised to escalate it further to the IT department and took all my details and get back to me the following day of which i understood and dropped the phone. then at about 18:30 on the 10/08/2015 i called back because no responce or feedback was given to me, and when i called i was told that it ddnt show that i called the previous day of which made me furious i then asked to speak to vincent and was told that vincent could be anywhere and they not able to locate him because there was no sign that i had called the previous day. i then asked to speak to another manager and spoke to simphiwe who promised to call me back and still hasnt!