Some broker/dealers will let cancelled securities linger in an account for years. They're under no obligation to remove them from your account. But they're also under no obligation to leave them there indefinitely. They can journal them off any time they like.
"The penny stock investor may be the most dangerous creature in the investment world, at least to himself.[...]His hypocrisy becomes most apparent when he then blames his losses on the greed of others." Robert C. Dugan, Director - JRM Capital