I would a simple dashboard for admin and referrer to selling specific code cards.
Anyone can participate to referral program buyer or not .
the payment of goods is manual by crypto Bitcoin Ethereum Litecoin.
Any customer have a balance when he can see the number of cards buying or earning.
9 freelancers are bidding on average $144 for this job
Hello dear employer, I can create this system and also will create the referral system so that users can invite their friends onto your website and in this way you can increase your traffic