Excess bill

I had ported my mobile number 9821688920 from reliance to Vodafone which got activated on 16th march 2016 with ₹399 plan having 1 Gb 3G data and after that 2G unlimited. In my first bill I was charged 11000/- for internet usage which was baseless. I had complained 2 to 3 times for the same. I was given ₹10000/- discount for the same and I was told to pay only rentals which I did on 25th April but to my surprise my phone was disconnected for non payment of ₹1100/- Now they are telling me that all your other phone numbers will be disconnected for the same