Missing Refferal Reward

I had referred Paytm to my friend under a referral offer that promised me Rs 80 once he downloaded the app. My friend downloaded the Paytm app, added his bank account, and made a payment of Rs 1 through the app, as prompted by the app itself. After completing this, I did not receive the promised reward of Rs 80. When I raised a ticket with Paytm, I was told that my friend was required to pay a minimum of Rs 10 for the reward to be valid. This condition was not clearly shown to us. After downloading the app, the option displayed was to pay Rs 1, not Rs 10, so there was no way to know the actual rule at that stage. Paytm did have rules mentioned somewhere, but they were not highlighted or made clear to the user before completing the transaction. Because of this confusion, my friend ended up paying me Rs 50 from his side believing I had taken the full reward amount, and he now thinks I misled him and acted in a fraudulent manner, which has affected our relationship. I had raised this issue with Paytm, but the matter was not resolved to my satisfaction. I want Paytm to clearly explain why the Rs 10 minimum payment condition was not displayed upfront when the app itself showed a Rs 1 payment option, and why the referral program rules were not clearly highlighted to users. I demand that Paytm either honour the promised referral reward of Rs 80 or clearly acknowledge the lapse in disclosing the terms and resolve the issue appropriately.