Hi Ewa,
You raised 2 points in your correspondence with us after the deed poll document was issued to you. Firstly, around why your address was included on the deed poll document, and you were told, this is a legal requirement. The second was around your assertion that a person is born in a location and our documents state that they are born at a location. I believe this is the whole crux of your argument and low scoring.
Irrespective of whether a person is born at a location or in a location, we use legal professional expertise in drawing up our documents. This ensures that we can then guarantee our documents to be accepted by any organisation within the UK, and we stand by that guarantee.
As you correctly stated our expertise is legal not linguistics, it ensures that our documents are legal and valid, and accepted under British law. If you wish to use your own wording, we will be happy to create such a document for you, but it would invalidate any guarantees we could provide.