In December I was denied entry to the USA by customs at Pearson Airport. I'm glad that at Toronto's Pearson we go through customs here in Toronto and I hadn't flown to NYC with my 6 year old only to be sent home.
I was given a list of documents to provide in order to enter the US if I choose to travel there within 6 months of the date I was allowed to "withdraw my application for entry."
I have a cruise that I booked and paid for over a year ago on March 5, 2016 for my daughter and myself that leaves from Miami. I wouldn't have booked this cruise so soon to my denied entry of course but it was already booked and paid for.
I have the documents required except I hadn't filed my taxes and hope I receive my return documents from Revenue Canada in time for the cruise.

My question however, is where do I submit all the required paperwork? It includes my bank statement, lease agreement, return ticket to Canada, etc., Do I need to make an appointment somewhere in advance or do I simply go very early to the airport on the day of departure and show everything to US Customs there? Do I go before my scheduled flight by a few days? I have tried calling US Customs at Pearson as well as the US Consulate in Ottawa but cannot reach anyone. I am sure I am not the only person to have had this issue so hoped someone could help me.
Also, I had emergency intestinal surgery in NYC in June 2015 which was a reason I was in NY longer than intended then. I was supposed to have a follow up appointment with my surgeon in December but was not given the chance to explain this to customs when I was denied. I plan to have the appointment in March after the cruise. My surgery was not for anything communicable and I am quite healthy now. However, I've been told by friends not to disclose anything of a medical nature to customs as it could be used as a reason to deny me entry to the USA instead of aiding my application. Is this true that any medical treatments could hinder entry instead of helping?
Thank you for any advice and input.