Hi guys ,
I’m looking for the video that explained how to do that challenge properly.
And any material related to that challenge please . Thanks 
Hola Patrick,
I’ve responded to your email this morning, but briefly for others - we don’t run those any more, but it’s possible to do it yourself if you set aside 5 days and push through the Spanish material we have: the new SSi App, plus extra practice from the audio course which included listening exercises.