Vodafone India — unnecessary billing charges

Address:

121102

2 to 3 months before i started using a postpaid number internet usage was not so much and calling was also not too much at that time bill was not so much it was 500rs. But according to the usage it was a lot. So i reduce the usage of no. And day by day they are increasing the amount of bill and stopped that particular no. Using after one month and fifteen days (Approx.). Now recovery boy are regularly asking to pay the bill which 500rs. Then became 700rs. Then 900rs. And then directly it reached to 1600rs.
Is this is way to provide services to the user ([protected])?