Post paid connection blocked without intimation

Location/place: Hyderabad

Name of company/service: Vodafone

I am using Vodafone from last 6 months. My number is 8886302266.this time my bill was Rs. 995 I paid Rs. 500 and said to there executive rest I will pay with next month bill with late fees. After 2-3 days they barred my outgoings even credit limit was not reached. and after 5-6 days they disconnected my number from the network with out any intimation. You can check my past record I never late my bills for a single day. this was first time and they did so. After disconnection the real problem was how to communicate with my official team and all other person because this was my official number. Please take proper action against this service provider do they really have such rights to stop the services with out any intimation.