Vodafone India — the last 4 to 3 month i have facing network issue on this number (incoming & outgoing calls issue)

Address:

600045

Ear sir,
I am dinakaran from chennai my mobile no:[protected], i have using this number last 3 to 4 year in same location and same mobile (Handset)
The last 4 to 3 month i have facing network issue on this number (Incoming & outgoing calls issue) so many time i have to informed online customer care executive. My last complaint number :[protected] on 05-aug-17. And i have complaint (Network issue – incoming and outgoing) this same issue so many times. This is my 5th complaint at the same problem (Network issue – incoming and outgoing).
But at the same time past three month i can’t use this number due to network issue in - and out going calls issue then how can i pay the monthly bill amount without using this number. Today and last three month i have inform to customer care executive he told me please pay last month bill amount i resolve this issue but every time your end customer care person using this same word but my problem was not solve. So
1. Please resolve this issue. (Or)
2. Kindly convert this same number from postpaid to prepaid. (Or)
3. I have surrender this number and i have not paid in future in this same case issue.
Thanks & regards
M. Dinakaran
Cell no: [protected] (This number also vodafone)