Add Cash Offer. Get 10% cashback on adding money on your Free Charge wallet paying via Samsung pay. Cashback will be credited to Free Charge wallet within 72 hours. Offer is valid Twice per user every month. Maximum Cashback is Rs. 50 per add money transaction. Valid on Credit/Debit Card/Net banking transactions only. Not Valid for amount added using Free Fund codes. Offer is not applicable on virtual/ prepaid/ temporary/international cards.