Disappearing/'expiring' data

Over the last 2, perhaps 3, months my airtime and data have been depleting at a rate far quicker than can be explained. I have called the contact centres, tweeted for assistance but I get left in a lurch. <br> <br> The services account on twitter even went as far as taking my details but eventually left me in a lurch too. I lodged queries with the customer service centre and even those have been ignored.<br> <br> Lately my data expires within 8 days of purchasing it. 8 days. I actually get messages informing me that it has expired. This is unacceptable and certainly ********. <br> <br> I have been a loyal MTN customer for almost 10 years and this is the service I get? I'm so disappointed and outraged. Having to go to these lengths is even sad.<br> <br> I need this resolved asap. As reluctant as I am to, I will eventually grow tired and take my business elsewhere.