Telkom now making data "disappear"

Hi I have an existing Telkom LTE-A contract with you guys & I started experiencing major problems since the 1st of March. Today is the 8th March - I got a report from your customer services saying that I have used 30g of night data. Furthermore I am on a 30g double up contract so I should be getting 60g day & 60g night data. Currently I have no night data although I got told I used 30g so where is the other 30g?

My day time data is also depleting even if un-used.

I think either my account has been billed with someone else or since the ICASA rules data is "disappearing"