Airtel and Vodafone Super Data Offers

I use both SIM and have data packs of each once in two months . Always I go for the hero RC beacuse there r no good offers and data packs are quite costly . But till date as the RC tells – U WILL GET 1.2 GB to 10 GB data , I havent ever got more than 1500 MB . One I got 1500 MB . And then each and every time I have got below 1300 MB . Just writing this thread to tell u that pls dont take such risks and 99% they will give equivalent of that particular anount . They are not fools to give more .