A little update of my case.
Last week we decided to write an email to nweurocoarequests@homeoffice.gsi.gov.uk to request a new COA based on the grounds that we are legally married and have all the documents to support it. I attached scanned copies of all the documents. We wrote the email last monday (october 12th).
TODAY I RECEIVED A NEW COA WITH RIGHT TO WORK!!! yeeeeei!

UPDATED TIMELINE:
EEA2 FM
App sent on 24/08/2015
Fee taken 26/08/2015
COA 02/09/2015
Bio letter 02/09/2015
Bio submitted 07/09/2015
REQUEST A NEW COA 12/10/2015
NEW COA 17/10/2015
NEW COA RECEIVED 21/10/2015