English Language Remark (Article instead of Letter)

On the 22nd of August, I opened my results and I found out I scored a grade 6 in English Lang. It may seem like I am being ungrateful but I've been consistently hitting grade 8s in my mocks. The only problem with the test I can think of at the top of my head was the fact that the content for my letter was completely identical to an article eventhough the layout mirrored a letter (addresses, name .etc). I am going to ring up my school shortly but I was wondering what everyone got but mainly what grades of the people who did an article instead of a letter. Thanks.