Myntra.com — myntra credit used

I have an account on myntra.com linked with my id
Sardana. [protected]@gmail.com and i have 1123 rs in my account as myntra credit
Someone uses this credit and order a shirt on myntra and the same got delivered in kolkata without my knowledge dont know how.
While ordering they change my mobile number and myntra didnt even verify that
Niw when i checked my account i am surprised that all my myntra credits got used.
On searching on google found that there are a lot of complaints like this against myntra.
They didn’t have any security on there application.
They allow hackers to steal money from others myntra account.

Vinay sardana
Ph: [protected]