I imagine that would do!
Is there not a telephone number? Just in my experience people are far more likely to respond better to potential purchasers who phone than email.
I have a friend who only ever emails and never gets a reply, yet i can ring the same ad and give her the details she wants within 10 minutes!
Obviously if you really need to do it NOW and cant wait thats another matter!!!!
Lol I've done that many times- its too late to ring but i HAVE to have that horse!