Patinaje clases en Madrid

I am looking for someone to teach patinaje in Madrid city for multiple kids, in the next 2 weeks as an intensive course. Looking online I can't find a definitive place to check this requirement, all I see is individual classes in specific places, and a bit unresponsive when asked about this type. Any recommendations?

Looking for something really informal, just to get the kids using the patinaje comfortably.

Visto en r/Madrid