I just received my parents' B2 extension receipt notice today and find in the petitoner column, under the petitioner print my father's name.But unfortunately, the first name of the petitioner(my father) was missing one letter, last name is correct.
In the same page, on the left side of the Notice Type(Receipt notice,Amount received :300.00),is the mailing adress and the recipient's name.Recipent is my father, and the full name is correct here.
In this notice ,it also shows that "If any of the above information is incorrect call customer service immediately".I don't know if the above typo(missing one letter in petitioner's first name) should be corrected or not.
Thank you very much for your input.