MTN- What a *******!!!

MTN had a problem with GPRS last month, I called in to query why I wasnt able to log on to the internet. I was advised their server was down. I informed the consultant I was speaking to that I buy data for the day and it would expire at midnight. Immediately after my call to the call centre I checked how much data was remaining and it was 12.38MB. I was promised that I would be refunded the next day. I called the call centre for a bout 3 to 5 days following up on when I will be reimbursed. A few agents promised that my details have been sent to the technical department and I will be reimbursed shortly. The last time I called MTN I was told I had used up my data on the very same day their server was down . No one could tell how that was possible and they say my number was not affected. How would I have known? When I tried to follow up I was told I had exceeded my limit to call MTN. If a big company like this can rob me off a mere 12.38MB, what else are they capable of? I cant wait to port out. I want my data back. I work hard to be ********** like this.