Letter - ask for some information

Hello. I have to write a letter to some english schools and ask some questions. I wrote something, but I don't know if it's correct. Could you check it? Thanks and sorry for my english

Dear Sir or Madam,
this summer, along with my brother, we are planning to fly from Poland to New York for at least four weeks to learn english language. We are both 17.
On your website I found information about language courses price, but I can not find enough information about housing. If we are 17 years old, where can we live during the course and what the price of housing is?

I am looking forward to hearing from you.
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