So I want to apply for cashback cc which can only be applied online via sprint portal and I've heard that nowadays SBI is asking for income proof(although I already have simplyclick card for past 2 years), is it possible to get SBI cashback cc on C2C basis, I have other bank credit cards having limit >1Lakh which are 1.5-2 years old but I don't have any income proof, kindly help.