Download Latest version of the Amazon App from the below link
Once you install and Login, From the Homepage Click on UPI Icon
Scan Your UPI QR Code, & Pay Rs.400 using Amazon Pay UPI Account.
You Will Get Rs.20 Amazon Pay Cash Repeat This Process 5 Times to get Rs. 100 Cashback for Free, all without spending a dime.
Tips: Open PhonePe or Paytm App, Send QR Code Screenshot to any secondary Phone of your family or a screenshot as an email to your laptop or personal computer, Now Open Amazon App & Select Scan & Pay, Now Scan PhonePe QR from Secondary Phone or laptop