I am using Vodafone from last 1 year and service is really very bad. No network in my office. Even there are network issues around the city.
I travel frequently and have to make so many calls daily. Using vodafone is the worst thing in my day. I had to buy a new connection of another operator so as to avoid further network issues.
I even dislike the internet speed of this operator and charges are higher than any other connection.
I dint had as such any billing disputes. I am a prepaid customer.