Hi, I invited my cousin, my IGN is Daeguni and Hers is Harim. We goes to same college so she is also my housemate and that explains for the connection issue. Thanks for reading and sorry for my bad English.
may i ask if you are using the same ip? this might also be one of the cause for not getting. example: i want to create 20 accounts, and i use same ip same invitation referral to train each account character to lv30. verdict: i will not get referral rewards. *edit: you might or might not get the rewards. i got mine the first time but not for subsequent accounts.