When having someone use your referral code, it's not very evident. When they go to the website using your referral code and try to sign up, it seems like it loses it in context (I.E. the url doesn't refer to it anymore).

Additionally, as the one that referred the user, you don't know when or if you are going to get rewarded for that. One day it just semi-appears that you have a referral, but you don't know who actually used your referral code. I feel like it would be beneficial if you could at least see the email of the person that used it or something like that.