Thanks for your reply.
Yes, my EEA Family Permit is valid for 6 months (I believe most of them are only for that length, after which you can apply for the residency card).
The CoA letter (certificate of application) is dated 14 of May 2015 and I received it by post on 23 of May 2015.
Are you aware of any possible solutions so I can continue working while I wait for their decision regarding my application?
Many thanks for your reply. I believe that the CoA is the second letter you refer to. This estates explicitly that they cannot confirm my right to work until a decision is been made because I am applying as an extended family member (unmarried partner).
The reason I started to work in the first place is because my EEA family permit explicitly allows me. I was expecting my CoA to continue granting me the right to work, because that is what it normally does to people who is waiting for an answer on their residency application. Nevertheless, apparently it cannot confirm my right to work, just because I am applying as an unmarried partner and not as any other of the options of family member.
I guess my question is if it is possible to continue employment by appealing the Home Office to consider my case because I am currently employed. Do you think that if my employer approaches them to expedite my residency card they could consider it?