Writing a letter to the organisers of the Memory Course

Question

Dear Sir or Madam

My name is Sam. I am a student and I recently saw your advertisement about Memory course. I used to be an excellent student as I had a wonderful memory. I could remember long lists of formula and vocabulary. However, since I  entered college, my grades have been worse than before. I have tried many methods to help me memorise the lessons. But i still find it hard to remember all those information. I'm interested in joining your course since i want to find the most suitable memorising method for me.

I would like to know more detailed information about your methods as well as the fee and dates of your course.
I'm looking forward to receiving your reply.

Yours faithfully

Sam