I couldn't find a specific discount rate on your trades. But when you refer you do get a 50% cash back on the commissions of your referee for 6 months. Not one of the best deals if you wanted my honesty. There are bigger and better exchanges out there. BUT, the blockchain.com app is more interesting because of its earning interest in the secure wallet. You can earn upto 5% on your BTC and ETH holdings.
It's time to get your Invitation.codes account too 😎