37 buck approx for 3 cards.
Mine lasted 10 yrs before I lost it. So I phoned last week and had them ship out 3 new ones. I also had my address updated.
If you know who you got it through give them a shout if not or the company that you used are no longer in business you might need to go through the Feds. From what I understand they will look up your info and tell you who you used.
Here is the gov website with the "what to do if" answer:
https://www.tc.gc.ca/eng/marinesafet...faq-2233.htm#l
Boaterexam's number is 1.866.688.2628 if you used them.
RJ