it's great that at first you decided to contact some company, and not try to deal with all this on your own. Since without the necessary connections and partners, it's impossible to start here.Especially when the service can do everything for you. If you are interested in this deal, there is a great service Mangomatter. I gave them a finished project, and they advertised it well in Canada and Australia (very responsible and quickly; more than 10K unique users per week), If you’ll have time,you can look through their offers, tips and services.