Tata Docomo — incoming call issue

Hello
I am not getting incoming calls on my docomo number ([protected])
This problem has been identified on 02.05.2018 when i reached in allahabad.
I called customer care but they are unable to solve and further have blocked my number and now i am unable to speak to representative.
Then i call other docomo number but representative not solve my problem and disconnected my call.
It's disgusting i ll switch from tata docono to another company if not get any solution with a day.
Alternative no [protected]
Name ashvani kumar