Being charged for what???

Can you urgently check why my one number 0*****7376 March bill is R1948,76?? This contract has a 2gb data contract that is suppose to stop working when the data is finished?? Please rectify this with your highest priority, Ive been n vodacom customer for years and this is the first time something like this happens. Please let me know what you are going to do regarding this.<br> <br> Ive sent mails this past week with no feedback at all!