Max Hospital — Appointment for my son

Hi, Today I have called to Max hospital, saket and talked to customer care representative to book appointment for my son. She confirm the appointment and sent two links on my mobile phone (one for payment and another for app.). She also told me that I need to pay appointment fee within 30 min from now otherwise it will be cancelled. I immediately open the link and payed Rs. 2000/- as a appointment fee. After that I have downloaded the mobile app. In Mobile application, it was showing that payment is still pending and I need to pay Rs. 2000/-. I immediately connected with customer care representative and he told me that It may take some time to update. After around 1 hour I again check and I was not updated and my appointment was cancelled. I again called to Customer-care and they told me that they are not authorized to check transaction details. I have payed through Paytm UPI and I have translation details details with me. all details. Request you to please help to resolve the issue.
Thanks
Regards,
Jitendra Kumar
[protected]