Airtel — refund of payment that was made by mistake through my credit card

On dec 23rd there was a debit from my credit card for my airtel number [protected]. It is a corporate number and hence i wanted the refund so that my organization can pay the due amount instead of me.
The customer care executives claimed that they had done the refund and hence revoked the payment. But, after multiple follow-up calls and emails, i still could not make the customer care executives understand that i have not received the amount. Neither my organization did. Every other day a new person gives a call, tries to understand the problem and send a mail as closure. First and foremost there is no one person tracking the issue. Every other executive have their own resolution, make me send multiple information/details etc and then every time it ends with no resolution.
Till date none of your customer care executive could share the transaction details for the refund. Although i have submitted my credit card statements showing the payment.
I have been following up for 3 months. Nothing is more frustrating then requesting over and over again for your own money.