Vodafone Postpaid — network issue-vodafone

one of the worst network & service provider in bangalore. i have some billing issues with airtel which it was not clarified for more than four months. finally i have decided to go with other service provider in the industry.
so i planned to go with vodafone, i have taken postpaid connection from vodafone. i have taken the connection in march, till today i am getting signal drop, for one call i have to make atleast three calls. i am into business all my clients were complaining. i have placed a request with vodafone (111 customer care, vodafone retail outlet in indira nagar 100ft road several times re: the same network issue. i have replaced my sim with new one. i have done enough of excise but of no use. finally i am paying the money from my pocket. please let me know how to go about this??? one thing is very clear, in the industry companies are coming with big banners & offers international brand, finally they were trying to screw up every indian. before 1947 it was direct ... now its indirect.

be indian...buy indian!!!