Vodafone India — Company not converting postpaid number to prepaid

Address:

Mumbai City, Maharashtra, 400709

1. Poor Vodafone 3G telecom services. From last 6 months getting poor telecom 3G services, from last 3 months not using services at all.
2. On 13th Feb when reached to Vodafone Center Vashi for converting postpaid to prepaid, they kept me waiting for 1 hour and indicated that conversion will not be easy but when I insisted they have taken all document with photo and promised response within 48 hours.
3. Today again when I visited they informed conveyed that it's under process
4. When I checked from another Vodafone mini store they conveyed that conversion is still not processed
5. I once again processed postpaid to prepaid from Vodafone mini store, they issued one more prepaid SIM card saying will be processed 48 hours wef monday.

I am already paying around Rs 1300 per month without any services and now company wants to continue taking this money without giving proper services.