No Internet - Data expiry

I bought a 25GB+25GB data bundle in June. In August, I suddenly had no internet and when queried with Telkom Mobile it was because my data bundle had expired. <br> <br> My data bundle is only supposed to expire in December as it is valid for 6 months!<br> <br> I have logged a case with Telkom (case #***3) and the call centre just informs me that is getting looked at, but there is no progress.<br> <br> I have had no internet for over a month now.