My name is XYZ and I am writing to you in response to your advertisement, which I found on your website about language courses. I would like to ask you more questions about it.
First, I want to know how expensive they are and where the classes take place. I will be glad, if you send me prices of your offers. I learn English for 9 years and I am on Upper Intermediate level. I am interested in foreign course. I think classes like these are best way to learn language, because you have a contact with people using it all the time. I have been on one course like this and I think that was a great experience.
I am looking forward to your reply. I want to participate in the trip.