NO FEEDBACK FROM VODACOM ON MY QUERY

On 15/01/2015 I logged a query with Vodacom concerning my high bill on my data usage on one of my contracts with them.On 19/01/2015 I received a e-mail from them stating that this account's data usage is being audited and that it might take 7 days and that I will receive feedback as soon as this is completed.On 04/02/2015 I phoned their customer care line to inquire about this,as I received no feedback on this matter.The call centre person made a note and logged a request onto their system that I wanted feedback.A week later no feedback was forthcoming so again I phoned the customer call centre,wanting to speak to a manager or supervisor,which does not happen.The person escallated my query and a gentlemen from the call centre returned my call and also logged a request that I be given feedback on this matter.Still no feedback received.Either the technical staff are not reading the requests or just ignoring them.I have an idea that there is something wrong on this account as I discovered that I'm being charged out of bundle rates when,in fact,I still have in bundle data left.<br> The query ref is: S3-8UV18-8B1J6<br> <br> Regards<br> PS Jansen van Vuuren