MEDICAL TEST LETTER POST TO MY SPONSOR IN ALBERTA 60 DAYS DEADLINE

Dear All,

I submitted my documents to Canada Embassy in Accra and used my sponsors address in Alberta,Edmonton for the mailing address.The letter was posted on the 14th of January 2009 with a deadline of 60 days which ends on the 15th of March 2009
The problem is that letter has still not reached my sponsor in Canada which will be forward to me here in Ghana for the neccessary test to done and submitted to the Canada Embassy.But the interesting issue is that I posted a letter an 27th of January 2009 and my sponsor has received the letter as at now.
The letter contain medical test which must be performed and submitted before the 60 days deadline from 14th of January 2009 to the 15th of March 2009.
I am refused and need help from any expect on the situation above.
Thanks