Originally Posted by
andres21st

So they still want to charge me for any changes as if was a voluntary cancellation...
the email is clear. upon replying that you agree to cancel, you'll get everything back except the non-refundable booking fee of 24 USD.
the second paragraph is only informational and doesn't apply to your request for an involuntary cancel.
(since LM has already established in the email that your flights were cancelled)
the informational part is just in case you chose not to cancel, and instead chose to change the dates to your ticket. just cancel and close the matter with these two tickets!