Vodafone — Issue in Refund of Excess Amount Paid

My no. [protected] was postpaid connection with Vodafone. Due to Internet connectivity issues, I have ported to Jio. To ensure continuous services I had to pay advance payment. The bill generated is showing Rs. 59.71 refundable to me.
The customer care executive asked me to ask from Jio to refund the money while I have made the payment to Vodafone.

I want the refund amount.