Airtel — Refund my money from company

Hello mam/sir,
I m a student from Ahmedabad. I recieved call from company I genuinely need money very urgently for hospital bill payment. I paid them 24279 Rs and not get any work from company. They said refund occur in 5 min after process and not refund after payment. Now They said refund occur in 7 days that is not expacted from this type of valuable company. I respect for airtel so I apply but now They Don't give satisfactory work. Please help me to take my refund.🙏🙏