Vodafone India — refund cheque not issued

I still haven't received my refund cheque from Vodafone. They sent me an email nearly a month and a half ago saying the refund cheque has been prepared or issued and will be sent to my address within 10 business days.

Still no signs of it. And if I call the customer care number mentioned in the email it keeps going into the prepaid section and those people cannot transfer my call to the right department.

Vodafone IVR is the worst. And what is even worse is Vodafone keeping my money. I will lodge a formal complaint regarding this.