Misleading promotions

<p>I received a message that if i recharge on the my vodacom application i will received double my data. I did not even need the data but i thought this is really cool promotion so let me buy a gigabyte via the my vodacom application. So when i bought the data i was sent a message that i received my extra gigabyte but it was only valid until the 5th of march. Why on earth would i want extra data if it expires in 5 days time, this will render the promotion useless. This was misleading from the start and essentially i have not gained anything by using the my vodacom application so i am realy unhappy .</p>