I have used reliance postpaid connection for 2 years an I had suffered alot due to false billing. several times they stopped my services without any notices and reason were also not clear.
Multiple times they have wrongly charged me for using internet on mobile where I didnt use the services hat much. there were several instance when company started various VAS services on cell without taking my consent for that an I had for those wrong services with my bill, when asked to correct down my bill they said the bill is correct and I had to pay.
Finally I decided to close down my connection and took a different operator