Mtn
Over billing

I have been billed with amount of R 67680 for the period 02/10/2013 to 03/10/2013.
as can see this for only two days. Cellphone data was switched of during this period.

I have queried this with MTN several times and no feedback yet.
I suspect that this can be sim card clone or billing.
Please investigate

Reference numbers:2787983