Missing data for sim card thats not even activated

<p>I recently purchased a router from vodacom,with 10G day and 10G night. The initiation date was 5 oct 2016 but was told it would only be activated once the 1st payment was made which was 14 oct. On friday 14th october i used the router (wifi) for about 30 mins from my cellphone. No updates or downloads. Just facebook and whatsapp. On Sat i could not access the wifi at all and called vodacom where i was then told that the sim has not been activated (but i used it the previous day) and that 2.48G(day) and 2.39G(night) had already been used.vodacom customer care put in a query and said it would take 2weeks to investigate how and when the data was used as it is a contract sim not a prepaid. It has been 4 working days since and i already received an sms from vodacom stating that the data has in 'fact' been used. I have screen logs from the wifi usage on my device And vodacom has not been able to show me proof of when the data was used.as according to them the sim card was not even activated but 4G of data had already been used. ref 1- ********** 1908</p>