SODAQ Autonomo and LoraBee, connected but no messages?

Hi guys,

I bought this SODAQ LoraBee kit and got so far that I registered it with ttnctl.

C:\Users-->ttnctl devices info 02DE00B9
Personalized device:

DevAddr: XXXXXXXXXXXXX
{0x02, 0xDE, 0x00, 0xB9}

NwkSKey: XXXXXXXXXXXXXXXXXX
{XXXXXXXXXXXXXXXXXX}

AppSKey: XXXXXXXXXXXXXXXXXXXXXXXX
{XXXXXXXXXXXXXXXXXXXXXXXXX}

FCntUp: 3
FCntDn: 0

Flags: -

I'm using the hello-world example, the serial output is:

Start
Connection to the network was successful.
Sleeping for 5 seconds before starting sending out test packets.
Successful transmission.
Successful transmission.
Successful transmission.
The device is busy. Sleeping for 10 extra seconds.
Successful transmission.

I'm connected with staging.thethingsnetwork.org (Using my EUI and Access key)
I subscribed on # but I'm not getting any messages.

I live in Leiden and there should be coverage on my testing location. Any help would be appreciated!