Flew BNE-SYD on a flexi this morning rang a few days ago to use a complimentary upgrade (have 5 expiring in AUG) and nothing available, not a huge deal as 3F all good but there was noone in business, the other time I tried to use one CBR-BNE only one person in business and again nothing available. Has anyone had success with this? Between our family of 4 we have 20 and to me they seem completely useless.