I know one debit card, which earn 0.5 cashback directly in to acount and . By paying cc bills in canera sethu and the cash back is instant. I thoroughly checked out comunity, no one knows about it. Dm me I will refer. It is totally online acount. You can create with in minutes.
There is another debit card, which is no where mention in original post and as well as in coments.
This debit card will give 0.5% real cash as rewards for credit card bills. No nonsense.