[Resolved]  Vodafone — Vodafone Cellular upc cannot be generated as there are subsisting contractual obligations with your service provider

Since Vodafone is not able provide proper data and calling service to my location getting very poor calling quality and data service, i am trying to port my number to another cellular network service provider. When i am trying to generate porting code i am getting below message.
"upc cannot be generated as there are subsisting contractual obligations with your service provider"

After discussion with Vodafone helpdesk they asked me to visit Vodafone showroom. Showroom people saying that i have plan with discount so they discontinued that plan too but still not able to generate upc code. I am still getting same issue.

Vodafone service desk is unable to provide any solution and there network service is worst after there coloration with idea.

Please help me to get out of Vodafone network.