Tata Docomo — my sim blocked

Address:

Gopi Venkateswarlu Building, Prakasam, Andhra Pradesh, 523001

I have problem with my dual sim mobile, so for some period i cant use my [protected] no., now it was blocked please unblock it for use
Went to d docomo office they said after 3 months my sim will get unblock but nothing happened i went again but no one helped
Now i want my number because its registered on many places
Plz rply to this
Really irritated by your customer care people