Do GHA Titanium members have to upgrade at least two levels to book Kempinski Hotel?

Not necessarily. As a matter of principle, we don't make reservations in official website. Treatment is optional. GHA“Global, otel, alliance "global hotel alliance is abbreviated as gha. It doesn't want IHG, Marriott and Shangri-La to be a hotel group, but an alliance of more than 30 small hotel groups, so the treatment in actual use is not very uniform.