Vodacom data bundles a nightmare

I renewed my contract with Vodacom in November. I am currently on a Smart M package and on 29 Dec 2014 requested that a 2gig data bundle recurring month-to-month be activated in addition to the 1gig I was already receiving. In January I noticed that they gave me 1 gig + 1gig Night Owl. I queried this and was told that I definitely received the 2 gig. Sadly I dialled *111# just after midnight on 1 Feb 2015 and it showed that I received 1g +1g Night Owl for February. The agent Ricardo at Call Centre just confirmed that I am billed R249 for 2 gig, but it's supposed to be 2gig + 2gig on Night Owl. Giving me 1g + 1g Night Owl is ********* as it goes against that which is advertised. Also, last month I was forced to buy another 1 gig when I ran out of data. Shame on you Vodacom! I am highly disappointed!