So just an update, my father passed away on July 28... I abandoned my RQ due to too much emotional stress. I did write to them and sent the death certificate so that they could update my file.
They wrote back two weeks ago and gave me another 30 days. I have decide to try!
To answer questions above, yes, I HAVE lived here in Canada for WAY more than 4 years, 2000 days at the time of application, however I do take frequent weekend trips to the USA for dance competitions, and I spent 5 months in Europe in 2016 (the year that I applied. That, coupled with being self-employed (and thus mobile) I guess made them want more information.
I am a British Citizen (so have the same Queen), a native English speaker (one of Canada's two official languages), college educated, and providing employment through my small business to Canadians, , and my business works to help Canadian charities, I pay my taxes every year - Honestly, if they don't want me to be a Canadian, then there is something wrong with the system.