Gold member. Wanted to change the date of an international flight, went through the process online a number of times, each time at the final stage received the generic error message “ problem please call us blah blah blah”. The website allowed the date change fare difference etc, just crashed at the end. Contacted customer care still no response 4 weeks later, so obviously I had to take the original booking. I did however within 10 days receive a customer survey, you can imagine the reply, polite as it was but rather pointed.