Exovations installed back door, recently we notice...

Exovations installed back door, recently we noticed that the frame is splitting. Submitted a warranty claim with Exovation, all claims should hear from someone within 14 days. As of today no response. Called to follow-up, only to hear that someone "might" call me by Friday (unacceptable). Asked to speak to the manager, and he is unavailable. If you plan on using this company, you better expect poor customer service and once the job is done, you won't be priority. It's a shame companies don't stand behind their work.