AC just sent emails about the flights I had booked for the 16th and 18th reminding of the current rebooking policy.
edit. looks like traffic has crashed the rebooking site lol. I get the following clicking the links in the email.
{"errorCode":"GEN_001","errorMessage":"Unable to process request , Invalid request with missing or corrupted Parameters","errorDetail":null,"severity":"GEN_ERR OR","serviceName":null,"beErrorCode":null,"beError Message":null,"subErrorList":null}