HDFC’s PayZapp has come up with another offer for mobile recharges or bill payments - 'Fastest 500' where a user can get 50% cashback. Offer valid on Monday, Wednesday & Friday (10 AM to 1 PM). So just avail this awesome offer & you may get Rs. 100 cashback on recharge / bill payment of Rs. 200 or more if you are one of the first 500 customers :)
Important : Offer Applicable on Mondays, Wednesday & Friday (10 AM to 1 PM) + Minimum transaction value of Rs. 200 + Rs. 100 CashBack for First 500 customers + it is valid on all operators including Airtel.
How to get 50% (Rs. 100) cashback?
2. Open the app and Login / Register
3. Now, Go to “Menu” >> Add Money to Wallet and complete the payment. Now, your wallet has been filled and is ready for the recharge
4. Now, initiate recharge or bill payment of Rs. 200 or more (Only on Monday / Wednesday / Friday from 10:00 AM - 01:00 PM)
5. Finally, Select “Pay with PayZapp” and pay the sum. That's it !!!
Bingo !! You will soon get cashback of 50% (Rs. 100) in your PayZapp wallet if you are there in the 'Fastest 500' list 
Terms & Conditions:
Offer period - Valid till May 31st 2016
1.) Offer is valid only on Billpay/Recharge/DTH/Datacard through "Pay with PayZapp" provided customer is registered for PayZapp at the time of transaction.
2.) Rs. 100 CashBack for First 500 customers transacting during offer Period.
3.) Minimum transaction value of Rs.200.
4.) Offer Applicable for transactions on Mondays ,Wednesday & Friday.Offer timing (10 AM to 1 PM).
5.) A customer is eligible for CashBack once during offer period.
6.) Offer is mutually exclusive to regular offers.
7.) Customer must have a verified PayZapp Mobile Number to avail the CashBack.
8.) We reserve the right to end any or all offers at our discretion without any prior notice.
9.) CashBack will be auto-credited within 5 working days after the date of transaction.
10.) In case the transaction is cancelled or left undelivered at merchant's end, a refund will be initiated within the next 7 to 10 working days Recharge/Billpay.