False advertising

I went onto the My Vodacom app last night to buy data. I saw that there were X2 data bundles available for purchase which I though was a bargain. So I chose to buy the 1GB X2 for R149. I tried to buy the data with the debit/credit card option but this option failed on several attempts. So I then went onto my online banking and bought airtime to the value of R149 in order to be able to purchase the 1GB X2 bundle via the app. I selected this bundle and completed the purchase using my airtime of R149. However, after the transaction was completed I only received 1GB data and not 1GB X2. I am extremely upset because Vodacom cannot advertise one thing and then not deliver.