Good morning Terpe,
You just keep on giving don't you?!
Are you sure that this is the case?
This link here on the gov.uk website suggest that i might need it for the EEA Family Permit visa:
https://drive.google.com/file/d/0B0H...it?usp=sharing
This is the website where I found this info (gov.uk):
https://www.gov.uk/eea-registration-certificate
I also spoke to a few other people who have gone the EEA permit route and they got the EEA Registration Certificate to submit with their partner's EEA family permit visa.
Thanks again for your info Terpe, much appreciated