I have sent them 0.5BTC two days ago, which got processed, but with great delay.

Sent an other 2.49BTC 24 hours ago, nothing yet.
-No response to multiple support Emails
-No reply to facebook message
-Not answering the phone

The transaction:
https://blockchain.info/tx/97083494c43406ffed29397c785448184370130a6d5e21a013c4f9dc9dc134f7

I would suggest to STAY AWAY from btcpromo.net until they clarify my situation.