I included proof of support such as money sent for the child health and welfare (reciepts of money sent, debits from my bank account etc.). Also, submitted a letter stating that mother is an unmarried single mom and has had no contact with the father since birth and xxx years. Included required documents such as my divorce papers, translated marriage certificate, birth certificate of both child and petitioner, etc. Also, send photos showing my relationship with child. Actually, in country now awaithing the interview on 14 November after a two year process.