Device app approval - no response for more than 2 weeks?

I submitted a device app to the Connect IQ Store more than 2 weeks ago and have not heard anything back from Garmin other than an email saying that my application has been received and a job number with a message that the transaction seems to have no content. The app is still in preview mode, although the 3 working days have long passed. I didn't check my app as beta.

I tried to contact Garmin support but no response. Does anybody have experience with that and if so, how did you overcome it?