Referral link is simply a link to Chips.gg that sets the referral code in your registration form automatically. For example if you click on https://chips.gg/?r=dany then the "Referral Code" section will be automatically filled with the code "dany".

You can also manually type the code "dany" if you don't have the link. Once you register under someones code it's permanent, it can not be changed or removed.

Chips.gg gives you the option to set a referral code up to 24 hours after registration if you aren't using anyone's code yet.

Once the 24 hours have passed then you won't be able to ever use anyone's code.

If you didn't use anyone's code on registration, and 24 hours haven't passed then you can add a referral code, to do that go to your Profile/Settings/General, you can go there by clicking on the button below.

Once you are there, insert the code you wish to add in the input box under "Attach Referral Code" then click on "Join Campaign" and you're done.