EF Education First Developer interview questions

First step in the process is an informal phone call. Just questions about what you like to do, where you'd be OK with working, past projects. Just the basics of a non technical call. While the interview itself was fine the company is highly unprofessional. For the second year in a row they told me they liked my profile and that I'd should be ready for going to their onsite interview in January (it is now April). I haven't heard anything from them. I won't be applying here again. Even companies such as Facebook, Google etc are way better at keeping in touch. Fool me once, shame on you; fool me twice, shame on me.