365 day data package cut off after one month

On 29 December I purchased a 3G Smartdata (Prepaid) that is valid for 365 days, but at the end of January the data expired.<br> <br> I called the call centre, they referred me to a store, I went to the store they referred me to the call centre, I called the call centre, they referred me to FNB (I bought the voucher on their site), I called FNB, they referred me to the call centre, I called the call centre, they said they would log a query and contact me in 48 hours, I called them back after a week, they could not trace my initial query reference. I give up. I have only used 277Meg of my 3G data that should be valid until 28 December 2015, but Cell C is too pathetic to sort this out.<br> <br> Reference for the call that should have been logged: ***