PhonePe App Refer & Earn Offer : Get Rs 75 Per Refer + Friend Gets 50% Cashback. PhonePe is offering refer and earn program where they are offering 50% Cashback on first UPI transaction (Max Rs 150) and Rs 75 per Referral. Get Maximum Cashback is Rs 150. This transaction must be the first ever UPI transaction of the user on PhonePe App. So now its your time to loot this offer..