Did you email/fax them the signed contract like I think I mentioned in my other post? If you have, it should not be too much of a problem, as I sent my medicals two days late but I did ring them to tell them that I would not be able to get my medicals to them on the date which they specified. They were understanding and said that I should get it to them as soon as I can, preferably within 2 weeks. It's not a problem, so try ringing them and just letting them know once again.