How to add a referral after registration?

I invited my sister to LingQ and she signed up. But I realized that I didn’t send a referral link. So I asked her to enter referral id in account settings in the ios app but it didn’t work.

Is there any way to add her to my referral list?

It’s not possible, but I can do it manually for you. Just let me know what is her username and I’ll take care of it.

Her username is “goguma1”. Thank you for taking care of this!

Thanks, I took care of it.