Please add a referral code change feature.
I entered the wrong code.
And why I can’t change that?
Please make a feature.
The reason it isn’t added is because otherwise you’d be able to change it mid-course, and it can lead to issues of how to pay each other user on the referral code.
However, adding some sort of confirmation to entering a code may be a good idea to stop users from entering the wrong one by inadvertence.
Have a nice day.