Date might have changed, but the offer seems to be exactly the same and this explains why I didn’t receive my first voucher.
I registered on 28th september, but didn’t make any transactions in September (which was my issuance month) & I was supposed to make a transaction to qualify for initial 100 voucher. Sad, missed that.
In later months, I made transactions and received the remaining 2 vouchers of 100 each.