In Lagos (Nigeria), they say they don't understand the first generation born abroad application. They only accept for minors(babies). Even when the application form states that it is Minor and Adults.
To make things though or impossible, since you are disturbing them, they tell you to go get documents or records that they know would have being destroyed or never existed because of poor record keeping ( that is the medical records). It was really very frustrating.
The reason I sent directly via a family friend to Sydney was this reason because they didn't accept the document and thus caused a delay of over a year to get the documents submitted.
There is also an option to submit indirectly on the application package which is what I used and I stated the relationship with the person who posted in Canada on my behalf.
The guys hear are not too friendly and even with mails to the Embassy stating my challenge, the front desk person told me to my face that 'there is nothing like fist generation born abroad, and that my documents if submitted would never go beyond his desk.