Hi there Marian,
Welcome to planDisney and thank you for stopping by with your question about your Theme Park Tickets. I am so sorry to hear that you have not been able to make it back to Disneyland Resort just yet. As a Canadian myself, I am anxiously awaiting for the travel restrictions to be relaxed in order to enjoy some Disney Magic.
Theme Park Tickets are non-refundable, but I would definitely try
calling and explaining your situation to a Cast Member. While not guaranteed, they may be able to help given your circumstance. If not, please don't worry, once your Theme Park Tickets expire, you will be able to use the value of your expired Theme Park Tickets toward the purchase of new Theme Park Admission when the time is right. Personally, I would keep your Tickets, so that way when you are ready to travel again, a significant portion of your visit will already be taken care of.
I hope you will be able to head back to
Disneyland Resort soon, Marian. If you have any other questions please come back to
planDisney again, we are always happy to help.
~Stephanie