Vodafone — Network connectivity problem

VI is not providing services as earlier. Network is too slow and no action taken even after complaining multiple times. I been using vi for 3.5+ years and never expected such behaviour from vi. When I say high priority network issue, they kept postponing the ETA. ETA was provided 10 days from complaining, while I'm paying you for 30 days without proper resolution. Payment portal also not working to port other network. Such cheap service i never experienced in any network.