Hello,
The referral system will change in the X-Bank (with more rewards in the long term). We will not be able to import your referral addresses as everyone's addresses will be changing to integrated addresses. This means the referrals counter will have to be reset. The good news, if there is one, is that we have 15 airdrops to go with this system.
I do not think I had any referrals. Though I might had a referral or two, but I don't know what benefit I was getting from the referrals.