Tata Docomo — my total network is not coming and some calls are coming to my alternate operator number by getting divert sometimes

I'm not getting my total network i can't call any one i can't message any one but message is not going from the day when i have buyer the docomo sim. I want the resolution for this and sometimes the call will come to my alternate number by getting divert. I want you to please open my tata docomo network and please activate the message settings to me so i can be able to send messages