My experience as well. Like restaurant, they Spa charges do only cound if operated by the hotel, not if outsourced. In general, my rule of thumb is that in Asia most Spas are operated by the hotel. But it is a complet different story in other regions. And I learned, that Seoul is also outsourced

No longer an IC, but charged to the Health Club at the former IC Düsseldorf never counted as qualifiying spend from my experience.

Nowadays, I ask in advance