Vodafone India — Deducted my net balance without even using

Address:	122001
Website:	www.vodafone.com

I recharged my Vodafone number by Rs. 299 on 23rd Aug 2016 and on 29 it showed me that I have used 50% of my internet data plan at 3:02 pm, after 5 mins I received a message that 90% of your data has been used and at 3:12 I received a message that you have used all your data plan and finally at 3:15 my balance was Rs. 37 and they deducted the complete balance. I recharged again on 29 August and within 2 days they deducted the complete net balance despite I was using it at 2G. They don't have any answers for the questions. They are just waste people with zero information. I am afraid of recharging my phone with internet now as they deduct complete balance. Please help.