Its 7500 plus gst i.e 8850
From that we get 8500 voucher
So acquisition cost is 350 plus 5 percent of 8500. (I have sbi cashback card, so suppose if I buy that much of voucher online, it would give me 425 cashback)
So 350 plus 425, in how much time can be recovered using the card, if my credit card bills are less.
Please suggest