Flipkart — Flipkart Account is hacked

I am Flipkart plus member.today my account is hacked by someone and I have received message and mail that my mobile account is linked with another mobile number. I contacted customer support to report this security incident and block the account temporarily team said they cant do as per their policy. What kind of policy is this I am a user and proving my identity with govt document but they said the saw its suspicious but they cant block the account temporarily. I have KYC registered and pay later activated and having EGV loaded. Poor customer support and poor policy. Policy made for hackers interest not for the customers. Please help me to retrieve my account asap.