Data roaming charges on switched of phone

In December 2014, had R3800 deducted from my bank account for Roaming Data charges for November. My phone was switched off and the simcard removed while I was working overseas. Vodacoms reply was they charged me for the data since I have a Blackberry contract and was using an Iphone. This made my blod boil since I UPGRADED in Sep 2013 to and Iphone Package at Vodacom in Paarl and signed all the form and submitted it right there. <br> <br> I responded via email to there explanation and had no response. I have also tried to call them and once I have mentioned the referance number. The call gets dropped or Im put on hold for extended periods.<br> <br> I have been a ther customer for the last 10 years and have never missed a payment. <br> <br> VODACOM CUSTOMER CARE is shockingly BAD!!!