Was the discussion of being walked held before or after waiting four hours for the suite? If before, then yes the ultimate reservation guarantee may apply. If not until after the poster determined the suite was in bad condition then wouldn’t only the guaranteed room type apply? (since the OP presumably agreed to wait for the suite versus being downgraded to a regular room).
For Platinums only bed type is guaranteed (assuming US property). Must be Titanium for guaranteed bed and room type.
Since the OP hasn’t revealed the property brand, region, free night cert value or details of the construction it is hard to give a full answer as to whether 25,000 points is adequate.