My Server ID: 124 - Mahiru
My Character Name: Nagato
My UID: 200000088801080
His Server ID: 124 - Mahiru
His Character Name: KusunaSakakia
His UID: 200000090073040

As for the date I invited my brother it was over 15 days ago so I don't know the exact date cuz the mail thingy got deleted but it was a while ago he just recently started playing again.