URGENT! letter to Oxbridge!

Hi all, I am about to write a mail to the college I apply to ask them about my written tests. Can you take a look and help me improve it, please?

Subject : Enquiry about written tests! ( is the subject ok for a formal letter?)
Content.
Dear Sir/Madam,

I am writing to you because I have some enquiries about my written tests.

My A level subjects are Accounting, Maths, Further Maths and Chemistry, which do not relate to the course Economics and Management I apply for.

Therefore, I would be very grateful I you can give my some suggestion about what kind of assignments I should submit to be accepted in my course.

I am looking forward to your reply,

Yours faithfully,

Phuong