Hey Talard,
I had the same worries... notification on August 28, tracking started on the 31st, nothing happened for 10 days.
I have also contacted support and asked what has happened to my shipment. Securifi has answered I should not worry, there would be a customs issue.
And guess what - I just checked and my shipment is in an aircraft which is just now flying from China to Germany where it will arrive in Frankfurt tomorrow morning!
So just be patient and check regularly - you will be positively surprised soon I bet!
Cheers,
Torben