Worst mibile operator.......!!. Review on Tata Indicom Mobile Operator

Tata indicom is a weast network. It is a old network. It is now not running popularly. First this network provides cdma sim cards which I am unable to change sim card to other operator. The network strength of the operator is very bad. The data also veryslow. The customer service in the operator is very bad. They are couldn't resolve our concerns quickly. The call cost if the operator is very high. The offers like ratecutter or anyother else alsi very bad don't use this operator. Very bad service. I have used this for a long time the vas services are activated automatically and they deduct my balance. Whenever I call to the customer and asking about the reason they tell.me that the you have activated the vas service. Then I am asking money refund by deactive the vas service. They deactivated the vas service and they could not give my money back . This operator is a worst operator.