Vodafone — Not providing full 3g data

Address:

Farrukhabad, Uttar Pradesh

On 10, june 2015 a msg from vodafone came on my vodafone no [protected] which told me about 3G offer that i would get 1gb 3G data for 28 days in 147 rupees. I reccharged it on 10/06/2015 at evening and got 500 mb data when made a call to c.c on 17/06/2015 to provide me remaining 500 mb 3G data they refused to provide me the data.