You have to wait until your friends have their KYC applications approved in order to get credited for the referral. In some cases KYC verifications go through in a matter of a couple of hours, other times it can take longer. Also, don't forget that maybe your friends used each other's referral links and not just yours 😉
In general when inviting your friends with your link, if you want to be sure that they get accepted in the shortest amount of time advise them to:
- Submit documents that are easy to read and where their photo is clear.
- Be ready to do the liveliness check in a well lit room.
I am sure your friends will be verified in no time and you will be credited the right token balance. Just have a little bit of patience.