30 day data not 30 days At all

I purchased 1gb 30 days data on the 26th at about 7pm. To my surprise this morning I checked on when it will expire and low and behold it expires on the 18th of December. My calcitonin that is 23 days and not 30 days as per adverti*****t. This is completely unacceptable as this is false advertising.<br> <br> I also noticed this when I had a blackberry and I was running on bis. Vodacom you are misleading people and this will be reported to ICASA.