It's apparently gone from Loblaws, Metro, and Sobeys. Supercentre Don Mills had a shelf tag this aft., but no stock. I will try good ol' Highland Farms (and yes, I know we've had the jars rather than tins here). Thanks for the suggestions.
I have been trying to locate it as well and just sent a request through their webpages. I don't know where it's disappeared to. May have to go to British stores to get it but it will be more expensive.