PhonePe — issue regarding refund

Address:	Jharsuguda, Odisha, 768202
Website:	Phonepe application

I did my first recharge on airtel of 399 but i instantly received a msg regarding "recharge couldnt be processed" and than i found that the amount was deducted from my account bt at the same time i found that a i had received a amount of rs50 cashback on phonpe as it was my first prepaid recharge... I waited and thought what to do next becoz i didnt receive any balance on my airtel account... After 5 to 6mins i saw that the amount was refunded bt it was only 349 and smartly they had added that 50ruppes and made it 399... Then i did a recharge of 399 on my jio account and used my jio wallet... The cashback i recieved was 75 which was fine according to the offer bt till now i cant understand what happened to my 50rs cashback which i should get according to there offer flashing on my home page... If the first recharge wasnt successful and it was all there technical fault atleast they should have given 50rs cashback on my next recharge btthat didnt happen... Very disappointed with this phonepe...