Soft-lock Failure (resulting in R3,822.71 excess data)

<p>Quick Summary</p> <p> </p> <p>Contract expired and moved to a month to month basis. Eventually switched to pre-paid and in the final month of the contract I quickly ran out of data. I then tried to buy a data bundle that was bought but not activated. I was then soft-locked and increased my limit from R50 to R350. I then recieved the bill at the end of the month and was charged R3,822.71 for out of bundle data. After enquiring through 111 I was told the soft lock can not be guareenteed even though it never failed before. Surely after checking through all my bank statements and granting me the contract they must know that I cant afford that...</p>