Flipkart — They Cheated

I ordered jeans but i got from different brand i simply go to app to create return but app is asking for otp to create return..It is very first time when app is asking for otp to create return my registered number is off right now not off but havent recharge because im using another no. For now
This is more disgusting when i go for client support they are not responding me msg they simply give only 1 option request a call to your registered mobile no.
Seriously..im going to uninstall this app right now