Myntra.com — my account has been hacked and someone has used rs. 899 myntra credits

My myntra account registered on mail id: [protected]@gmail.com having rs. 1000 myntra credits has been hacked by someone and
Rs. 899 was used from my myntra credits for order id 114264822833121984203.
Also my registered mobile number has been changed without my knowledge. When i contacted given customer care number - message received - due to covid crisis we cannot take your call. Email us from app or web page. I have already sent mail to [protected]@myntra.com. And they replied-we are currently not accepting emails sent directly to [protected]@myntra.com
You can contact myntra customer support through the contact us section on the mobile app or by logging on to www.myntra.com/contactus on desktop, for your queries.
But, i cannot reach to contact us section or because my account's mobile number and mail id has been changed by someone else without my knowledge so, i am not able to login my myntra account and raise issue regarding this from my myntra account contact us section. So, i request you to kindly solve this issue and give access of my account to me and refund my myntra credits rs.899.