PayUMoney — Refund not got from payment link

I booked ola scooter few months ago. Now i cancelled the booking. They initiated refund and got link for update my payment details via payumoney.. I updated my upi id on payumoney and they ask for otp. I submitted but they told its wrong. And after that the link is expired. They dont even contact me after the issue. There is not have any options to contact them. Not supporting mail id or contact number