Vodafone India — retain my number without my permission

I raised a request on 14th nov 2017 for porting, on 15th i submitted it to airtel and got new sim by paying some amour.

Got calls daily from that day from vodafone customer care to retain. I did not agree to it.

I don't owe anything to them, but created a fake bill to stop the porting.

They stopped my porting, when i contacted they mentioned it was created by mistake. Then they knocked it off and told to again raise request for porting.

My question, why the fake bill was created. Why the porting is stopped without my permission.

I want to file complaint on vodafone for this