I am the permanent and regular customer of Tata Docomo.i am loyal to it as I am never shifted to other networks. the most important thing I like in Tata Docomo is the network as you get the network of the Tata Docomo in every region of the country. the customer service of the Tata Docomo is very good as they respond you very quickly for your problem and the offers provided by the Tata Docomo is very good as in the time of jio I never used it because of the service provided by the Tata Docomo. the charges and billing of the Tata Docomo is very less as comparison to other mobile networks .the call rate of the company is also less. I should prefer you to use Tata Docomo.