Vodafone India — postpaid connection not deactivation.

Hello,

My mobile number is :91 [protected]
I had called up the vodaphone customer care and informed to cancel/disconnect my number and asked to change prepaid since i need to travel outside india for long period.

Vodaphone customer executive had acknowledged to my request and they mentioned me not to worry and necessary steps are taken to cancel my post-paid connection.
Based on my request, i can see my service request raised in your portal, please find the attached for reference (Sr #[protected] dated : 15-sep-2017). By having this sr i was sure vodafone will fulfill my request and provide good service to their customer.

For not of my mistake, i need to undergo unnecessary trauma to handle this issue. Currently vodaphone is making harassing calls and asking to pay monthly bills without making disconnection.

I have attached my request as well.