Trick – Pay your onecard bill through onecard and get your 5% cashback, full details - https://www.desidime.com/deals/free-credit-card...
Note – If your OneCard issue by Federal bank or SBM bank then choose IDFC First bank on Amazon cc billpay list and Payment mode select Airtel Net banking.
Now done offer completed. Enjoy.
or You can also use 4k load Paytm wallet via Zomato/Uber app and then rest of 1k through Amazon/Airtel trick.
No need to buy Amazon gv or any other shopping spend. just rotate money using my trick and earn 5% cashback.