god, your ignorance never cease to amaze me
you do realize Hotel ownership and hotel brands are seperate entities?
Hotel brands manage the property for a hotel owner for a fee, with contracts, hence why hotels can change brand when those contracts are up or violated in their legal provisions
what would happen if you have a credit note for a certain value at a specific hotel property, and it changes brand before that credit note expires or is executed? yep, you are fooked, and usually the hotel brand will transfer that credit note to another property, at their discretion. Yep, double fucked