Idea Cellular — security deposit not refunded. v

Address:

441, 2 floor, Gopichandra complex, sampige road, Malleswaram, Bangalore, Karnataka, 560003

Advance payment was collected for availing international call facility on my mobile.
I now want to port to a differebt service provider. I had approahed the idea service centre in basaveswaranagar, bangalore karnataka, to reolve this.
They are now saying there is no deposit in my account.
This complaint is to get this resolved and money refunded.