Vodafone — V bad signal voice calls and net both

Address:

Daman, Daman and Diu, 396220

I have been chasing vodaphone for v bad signal for the last two mths no solution nor they let me move to other service provider before 90 days that is not right so i have no other option but to pay for their crap service i need solution i pay for service vodaphone agree there is problem in my area but no reply when they clear ? no fix time limit so i have one option i pay them till 90 days for total crap service?
hopeless company
i wrote to them soo many times i ask them to reply in writing now