(New Users) Flat Rs.50 cashback on Rs.300 and above using Credit card via Helpchat
https://www.helpchat.in/sharedeals/offer/helpchat-flat-rs75-cashback-on-rs500-and-above-using-creditdebit-card/

T&C:
- Flat Rs.50 cashback on Rs.300 and above.
- Use code CARDSECASH to avail the offer.
- Can be used only once per User/Device/Number.
- Offer is valid for transactions through credit card only.
- Valid for Users doing recharge for the first time.
- Cashback will be credited immediately.
- Not valid for Airtel users.
Valid Till: Dec. 31, 2016, 11:59 p.m.